rmodule: Don't emit reloc for R_X86_64_PC64

Relocations for PC relative instructions must not emitted.
As PC64 are unlikely with current code, it never was an issue.

Change-Id: Ife472a287ff15b1c04a516e25ff13221441fd122
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/31469
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/cbfstool/rmodule.c

@@ -66,7 +66,6 @@ static int should_emit_amd64(Elf64_Rela *rel)
 
 	/* Only emit absolute relocations */
 	return (type == R_AMD64_64 ||
-		type == R_AMD64_PC64 ||
 		type == R_AMD64_32S ||
 		type == R_AMD64_32);
 }