omap3: Drop CONFIG_OMAP3_EVM, switch to CONFIG_TARGET_OMAP3_EVM when needed

We make use of CONFIG_OMAP3_EVM today to know when to do a specific
tweak in MUSB.  This can be tested on via CONFIG_TARGET_OMAP3_EVM
instead, so switch there so we can drop the now unused symbol
CONFIG_OMAP3_EVM.  In investigating what to do about the symbol usage we
see that the cairo board defines the same function, but never called it
(as it does not define CONFIG_OMAP3_EVM) and was just returning anyhow,
so drop that function from that board.

Cc: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>

board/quipos/cairo/cairo.c

@@ -25,18 +25,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-/*
- * MUSB port on OMAP3EVM Rev >= E requires extvbus programming.
- */
-u8 omap3_evm_need_extvbus(void)
-{
-	u8 retval = 0;
-
-	/* TODO: verify if cairo handheld platform needs extvbus programming */
-
-	return retval;
-}
-
 /*
  * Routine: board_init
  * Description: Early hardware init.

drivers/usb/musb/omap3.c

@@ -118,7 +118,7 @@ int musb_platform_init(void)
 		stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY;
 		writel(stdby, &otg->forcestdby);
 
-#ifdef CONFIG_OMAP3_EVM
+#ifdef CONFIG_TARGET_OMAP3_EVM
 		musb_cfg.extvbus = omap3_evm_need_extvbus();
 #endif
 

drivers/usb/musb/omap3.h

@@ -32,7 +32,7 @@
 
 int musb_platform_init(void);
 
-#ifdef CONFIG_OMAP3_EVM
+#ifdef CONFIG_TARGET_OMAP3_EVM
 extern u8 omap3_evm_need_extvbus(void);
 #endif
 

include/configs/omap3_evm.h

@@ -87,8 +87,6 @@
 
 #define CONFIG_SDRC			/* The chip has SDRC controller */
 
-#define CONFIG_OMAP3_EVM		/* This is a OMAP3 EVM */
-
 /*
  * Clock related definitions
  */

scripts/config_whitelist.txt

@@ -1981,7 +1981,6 @@ CONFIG_OF_STDOUT_PATH
 CONFIG_OF_SUPPORT_OLD_DEVICE_TREES
 CONFIG_OMAP3_AM3517CRANE
 CONFIG_OMAP3_DEVKIT8000
-CONFIG_OMAP3_EVM
 CONFIG_OMAP3_GPIO_2
 CONFIG_OMAP3_GPIO_3
 CONFIG_OMAP3_GPIO_4