soc/intel/broadwell: Add int to unsigned

Fix the following issue detected by checkpatch:

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'

TEST=None

Change-Id: Iae22e724b6adae16248db7dc8f822f65bfadae5f
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18873
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
diff --git a/src/soc/intel/broadwell/me.c b/src/soc/intel/broadwell/me.c
index 06c92c3..800e8ba 100644
--- a/src/soc/intel/broadwell/me.c
+++ b/src/soc/intel/broadwell/me.c
@@ -149,7 +149,7 @@
 static int mei_wait_for_me_ready(void)
 {
 	struct mei_csr me;
-	unsigned try = ME_RETRY;
+	unsigned int try = ME_RETRY;
 
 	while (try--) {
 		read_me_csr(&me);
@@ -189,7 +189,7 @@
 static int mei_send_packet(struct mei_header *mei, void *req_data)
 {
 	struct mei_csr host;
-	unsigned ndata, n;
+	unsigned int ndata, n;
 	u32 *data;
 
 	/* Number of dwords to write */
@@ -293,8 +293,8 @@
 {
 	struct mei_header mei_rsp;
 	struct mei_csr me, host;
-	unsigned ndata, n;
-	unsigned expected;
+	unsigned int ndata, n;
+	unsigned int expected;
 	u32 *data;
 
 	/* Total number of dwords to read from circular buffer */