ARMV7: OMAP: Fix build after introduction of GENERATED_GBL_DATA_SIZE

This patch fixes the issue by defining and using CONFIG_SYS_INIT_RAM_SIZE and
CONFIG_SYS_INIT_RAM_ADDR. Based on an email discussion with Wolfgang Denk and
Heiko Schocher.

Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/include/configs/igep0030.h b/include/configs/igep0030.h
index d6fbec7..031de35 100644
--- a/include/configs/igep0030.h
+++ b/include/configs/igep0030.h
@@ -209,6 +209,10 @@
 #define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (128 << 10))
 
 #define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
-#define CONFIG_SYS_INIT_SP_ADDR		(LOW_LEVEL_SRAM_STACK - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_RAM_ADDR	0x4020f800
+#define CONFIG_SYS_INIT_RAM_SIZE	0x800
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INIT_RAM_ADDR + \
+					 CONFIG_SYS_INIT_RAM_SIZE - \
+					 GENERATED_GBL_DATA_SIZE)
 
 #endif /* __CONFIG_H */