Blackfin arch: all symbols were offset by 4k, since we didn't have the __text label.

Bug tracker: http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3231

Singed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

arch/blackfin/kernel/vmlinux.lds.S

@@ -52,6 +52,7 @@ SECTIONS
 
 	.text :
 	{
+		 __text = .;
 		 _text = .;
 		 __stext = .;
 		TEXT_TEXT