ARM: highbank: change TEXT_BASE to 0x8000

Make some space at the beginning of RAM so the FDT can be loaded to a
known fixed address at 0x1000.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>

include/configs/highbank.h

@@ -120,7 +120,7 @@
 #define CONFIG_ENV_IS_NOWHERE
 
 #define CONFIG_SYS_SDRAM_BASE		0x00000000
-#define CONFIG_SYS_TEXT_BASE		0x00001000
+#define CONFIG_SYS_TEXT_BASE		0x00008000
 #define CONFIG_SYS_INIT_SP_ADDR		0x01000000
 #define CONFIG_SKIP_LOWLEVEL_INIT