powerpc, 8xx: Fixup all 8xx u-boot.lds scripts

8xx was left behind when fixing up powerpc linking
scripts to support -fpic.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
diff --git a/board/sixnet/u-boot.lds b/board/sixnet/u-boot.lds
index 2711f2c..02d1980 100644
--- a/board/sixnet/u-boot.lds
+++ b/board/sixnet/u-boot.lds
@@ -47,13 +47,14 @@
   PROVIDE (erotext = .);
   .reloc   :
   {
-    KEEP(*(.got))
     _GOT2_TABLE_ = .;
     KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
     _FIXUP_TABLE_ = .;
     KEEP(*(.fixup))
   }
-  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
   __fixup_entries = (. - _FIXUP_TABLE_)>>2;
 
   .data    :