Fix compiler error seen with clang, The return value of this
function is not checked anywhere so in a way its useless but
still technically correct to return a value here

Fixes

../../bfd/reloc.c:1638:7: error: non-void function '_bfd_clear_contents' should return a value [-Wreturn-type]
      return;
      ^
1 error generated.

It has been fixed in master along with a larger cleanup and fix for relocations

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=1dc9e2d63e37839ff1768346b2e3f52e338baba5

Upstream-Status: Backport [Fixes differently]

Signed-off-by: Khem Raj <raj.khem@gmail.com>

--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -1629,7 +1629,7 @@ _bfd_clear_contents (reloc_howto_type *h
     default:
       abort ();
     case 0:
-      return;
+      return 0;
     case 1:
       x = bfd_get_8 (input_bfd, location);
       break;