powerpc, 8xx: Fix fallout from "Fixup all 8xx u-boot.lds scripts"

Two linker scripts for 8xx was missed.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
diff --git a/board/matrix_vision/mvsmr/u-boot.lds b/board/matrix_vision/mvsmr/u-boot.lds
index bf2ed04..57c37de 100644
--- a/board/matrix_vision/mvsmr/u-boot.lds
+++ b/board/matrix_vision/mvsmr/u-boot.lds
@@ -62,7 +62,7 @@
     _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    :