am43xx: Update CONFIG_SPL_TEXT_BASE

With 1.2 silicon this is now the documented starting usable point for
downloading images to (and corrects a problem with peripheral booting
with prior silicon).  Prior silicon is OK using this address as well.

Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>

include/configs/am43xx_evm.h

@@ -42,7 +42,7 @@
 #define CONFIG_POWER_TPS62362
 
 /* SPL defines. */
-#define CONFIG_SPL_TEXT_BASE		0x40300350
+#define CONFIG_SPL_TEXT_BASE		0x402F4000
 #define CONFIG_SPL_MAX_SIZE		(220 << 10)	/* 220KB */
 #define CONFIG_SYS_SPL_ARGS_ADDR	(CONFIG_SYS_SDRAM_BASE + \
 					 (128 << 20))