Fix warning in logging string interpolation

Change-Id: I86623083f68664d31ea277958837a4c2985037b4

libs/input/InputTransport.cpp

@@ -22,6 +22,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <inttypes.h>
 #include <math.h>
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -312,7 +313,7 @@ status_t InputPublisher::publishMotionEvent(
     }
 
     if (pointerCount > MAX_POINTERS || pointerCount < 1) {
-        ALOGE("channel '%s' publisher ~ Invalid number of pointers provided: %zu.",
+        ALOGE("channel '%s' publisher ~ Invalid number of pointers provided: %"PRIu32".",
                 mChannel->getName().string(), pointerCount);
         return BAD_VALUE;
     }