ARMV7: OMAP3: IGEP: Rename TEXT_BASE

Commit 14d0a02a "Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE" missed the
IGEP boards since they were just added.
Signed-off-by: NSteve Sakoman <steve.sakoman@linaro.org>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>

board/isee/igep0020/config.mk

@@ -30,4 +30,4 @@
 # (mem base + reserved)
 
 # For use with external or internal boots.
-TEXT_BASE = 0x80008000
+CONFIG_SYS_TEXT_BASE = 0x80008000

board/isee/igep0030/config.mk

@@ -30,4 +30,5 @@
 # (mem base + reserved)
 
 # For use with external or internal boots.
-TEXT_BASE = 0x80008000
+CONFIG_SYS_TEXT_BASE = 0x80008000
+