HV: handle integral issues as MISRA-C report

mainly focus on: like U/UL as unsigned suffix;
char and int mix usage; also change some function's params
for data type consistent.

Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

hypervisor/include/lib/sprintf.h

@@ -24,7 +24,7 @@ struct print_param {
 	/* Contains variables which are recalculated for each argument. */
 	struct {
 		/* A bitfield with the parsed format flags. */
-		int flags;
+		uint32_t flags;
 		/* The parsed format width. */
 		int width;
 		/* The parsed format precision. */