util: Include the needed util/detect*.h headers in multiple files

This is discovered either by manually or -W-no-def option

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19674>

src/util/u_debug_stack.h

@@ -30,6 +30,8 @@
 
 #include <stdio.h>
 
+#include "util/detect_os.h"
+
 #ifdef HAVE_LIBUNWIND
 #define UNW_LOCAL_ONLY
 #include <libunwind.h>