Move strtomhz() to vsprintf.h

At present this function sits in its own file but it does not really
justify it. There are similar string functions in vsprintf.h, so move it
there. Also add the missing function comment.

Use the vsprintf.h include file explicitly where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

board/Arcturus/ucp1020/ddr.c

@@ -8,6 +8,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/processor.h>

board/atmel/at91sam9261ek/at91sam9261ek.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <debug_uart.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/arch/at91sam9261.h>
 #include <asm/arch/at91sam9261_matrix.h>

board/atmel/at91sam9263ek/at91sam9263ek.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <debug_uart.h>
+#include <vsprintf.h>
 #include <linux/sizes.h>
 #include <asm/arch/at91sam9263.h>
 #include <asm/arch/at91sam9_smc.h>

board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <debug_uart.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/at91sam9g45_matrix.h>

board/atmel/at91sam9n12ek/at91sam9n12ek.c

@@ -5,6 +5,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/arch/at91sam9x5_matrix.h>
 #include <asm/arch/at91sam9_smc.h>

board/atmel/at91sam9rlek/at91sam9rlek.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <debug_uart.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/mach-types.h>
 #include <asm/arch/at91sam9rl.h>

board/atmel/common/video_display.c

@@ -11,6 +11,7 @@
 #include <version.h>
 #include <video.h>
 #include <video_console.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/arch/clk.h>
 

board/esd/meesc/meesc.c

@@ -11,6 +11,7 @@
 
 #include <common.h>
 #include <env.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <asm/mach-types.h>

board/freescale/bsc9131rdb/ddr.c

@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/processor.h>

board/freescale/bsc9132qds/ddr.c

@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/processor.h>

board/freescale/corenet_ds/ddr.c

@@ -6,6 +6,7 @@
 #include <common.h>
 #include <i2c.h>
 #include <hwconfig.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <fsl_ddr_sdram.h>
 #include <fsl_ddr_dimm_params.h>

board/freescale/ls1043ardb/ddr.c

@@ -7,6 +7,7 @@
 #include <fsl_ddr_sdram.h>
 #include <fsl_ddr_dimm_params.h>
 #include "ddr.h"
+#include <vsprintf.h>
 #ifdef CONFIG_FSL_DEEP_SLEEP
 #include <fsl_sleep.h>
 #endif

board/freescale/mpc8541cds/mpc8541cds.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <pci.h>
+#include <vsprintf.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>

board/freescale/mpc8548cds/mpc8548cds.c

@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <pci.h>
+#include <vsprintf.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>

board/freescale/mpc8555cds/mpc8555cds.c

@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <pci.h>
+#include <vsprintf.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>

board/freescale/p1010rdb/ddr.c

@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/processor.h>

board/freescale/p1_p2_rdb_pc/ddr.c

@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/processor.h>

board/freescale/p1_twr/ddr.c

@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/mmu.h>
 #include <asm/immap_85xx.h>
 #include <asm/processor.h>

board/mini-box/picosam9g45/picosam9g45.c

@@ -11,6 +11,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <asm/io.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/at91sam9g45_matrix.h>

board/ronetix/pm9261/pm9261.c

@@ -8,6 +8,7 @@
  */
 
 #include <common.h>
+#include <vsprintf.h>
 #include <linux/sizes.h>
 #include <asm/io.h>
 #include <asm/gpio.h>