DO NOT MERGE: drm_hwcomposer: Fix up some printf warnings and a clang-style nit

BUG=None
TEST=Compiles

Change-Id: Ie95aad60b225784c36d411ec16a34ff32ea8acc6
Signed-off-by: Sean Paul <seanpaul@chromium.org>
diff --git a/drmdisplaycompositor.cpp b/drmdisplaycompositor.cpp
index aaef8e4..df8e331 100644
--- a/drmdisplaycompositor.cpp
+++ b/drmdisplaycompositor.cpp
@@ -807,7 +807,7 @@
   if (!test_only && mode_.needs_modeset) {
     ret = drm_->DestroyPropertyBlob(mode_.old_blob_id);
     if (ret) {
-      ALOGE("Failed to destroy old mode property blob %lld/%d",
+      ALOGE("Failed to destroy old mode property blob %" PRIu32 "/%d",
             mode_.old_blob_id, ret);
       return ret;
     }
@@ -858,7 +858,7 @@
     ALOGE("Failed to create mode property blob %d", ret);
     return std::make_tuple(ret, 0);
   }
-  ALOGE("Create blob_id %ld\n", id);
+  ALOGE("Create blob_id %" PRIu32 "\n", id);
   return std::make_tuple(ret, id);
 }