davinci_emac: move arch-independent defines to separate header

DaVinci EMAC is found not only on DaVinci SoCs but on some OMAP3 SoCs
also. This patch moves common defines from arch-davinci/emac_defs.h to
drivers/net/davinci_emac.h

DaVinci specific PHY drivers hacked to include the new header. We might
want to switch to phylib in future.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>

arch/arm/cpu/arm926ejs/davinci/dp83848.c

@@ -29,6 +29,7 @@
 #include <net.h>
 #include <dp83848.h>
 #include <asm/arch/emac_defs.h>
+#include "../../../../../drivers/net/davinci_emac.h"
 
 #ifdef CONFIG_DRIVER_TI_EMAC
 

arch/arm/cpu/arm926ejs/davinci/et1011c.c

@@ -22,6 +22,7 @@
 #include <net.h>
 #include <miiphy.h>
 #include <asm/arch/emac_defs.h>
+#include "../../../../../drivers/net/davinci_emac.h"
 
 #ifdef CONFIG_DRIVER_TI_EMAC
 

arch/arm/cpu/arm926ejs/davinci/ksz8873.c

@@ -36,6 +36,7 @@
 #include <net.h>
 #include <asm/arch/emac_defs.h>
 #include <asm/io.h>
+#include "../../../../../drivers/net/davinci_emac.h"
 
 int ksz8873_is_phy_connected(int phy_addr)
 {

arch/arm/cpu/arm926ejs/davinci/lxt972.c

@@ -30,6 +30,7 @@
 #include <miiphy.h>
 #include <lxt971a.h>
 #include <asm/arch/emac_defs.h>
+#include "../../../../../drivers/net/davinci_emac.h"
 
 #ifdef CONFIG_DRIVER_TI_EMAC