objtool: Move dodgy linker warn to verbose

The lld.ld borkage is fixed in the latest llvm release (?) but will
not be backported, meaning we're stuck with broken linker for a fair
while.

Lets not spam all clang build logs and move warning to verbose.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>

tools/objtool/check.c

@@ -2273,7 +2273,7 @@ static int read_annotate(struct objtool_file *file,
 
 	if (sec->sh.sh_entsize != 8) {
 		static bool warned = false;
-		if (!warned) {
+		if (!warned && opts.verbose) {
 			WARN("%s: dodgy linker, sh_entsize != 8", sec->name);
 			warned = true;
 		}