omap5912-osk: Fix booting from NOR flash

The omap5912-osk board is using a RAM based address as the linker
location for code. This is causing several problems when attempting
to run the latest u-boot code base on this board from flash. Update
the default linker location for code to be in NOR flash at address
0x00000000.

The omap5912-osk board only has 32MB of RAM and so fix the comment
in the omap5912-osk config.mk file as well.
Signed-off-by: NJon Hunter <jon-hunter@ti.com>

board/ti/omap5912osk/config.mk

@@ -14,17 +14,17 @@
 # TI OSK board with OMAP5912 (ARM925EJS) cpu
 # see http://www.ti.com/ for more information on Texas Instruments
 #
-# OSK has 1 bank of 256 MB SDRAM
+# OSK has 1 bank of 32 MB SDRAM
 # Physical Address:
-# 1000'0000 to 2000'0000
+# 1000'0000 to 1200'0000
 #
 #
 # Linux-Kernel is expected to be at 1000'8000, entry 1000'8000
 # (mem base + reserved)
 #
-# we load ourself to 1108'0000
+# When running from RAM use address 1108'0000, otherwise when
+# booting from NOR flash link to address 0000'0000.
 #
-#
-
 
-CONFIG_SYS_TEXT_BASE = 0x11080000
+CONFIG_SYS_TEXT_BASE = 0x00000000
+#CONFIG_SYS_TEXT_BASE = 0x11080000