Fix alignment error on ARM for modules

Fix alignment fault on ARM when running modules.  With out an explicit
linker file gcc4.2.1 will half word align __bss_start's value.  The word
dereference will crash hello_world.

signed-off-by Richard Woodruff <r-woodruff2@ti.com>
diff --git a/examples/Makefile b/examples/Makefile
index d63fa70..60a6f5e 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -30,8 +30,12 @@
 endif
 
 ifeq ($(ARCH),arm)
+ifeq ($(BOARD),omap2420h4)
+LOAD_ADDR = 0x80300000
+else
 LOAD_ADDR = 0xc100000
 endif
+endif
 
 ifeq ($(ARCH),mips)
 LOAD_ADDR = 0x80200000 -T mips.lds