meta: Make shader template literal strings be parameters to asprintf

meta: Make shader template literal strings be parameters to asprintf

This enables the C compiler to generate warnings if the formats and the
arguments don't match.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>