Fix format string warnings

MockCasPlugin.cpp: These are printing out `size_t`s, so we should be
using %zu.

ClearKeyFetcher.cpp: asset_.id() is an `unsigned long long`, so we
can't use PRIu64 for it.

Bug: None
Test: mma. Warnings are gone.
Merged-In: Ie34acb274696dea999f6309fb914b39ef00f4d77
(cherry picked from commit 843328ff13)

Change-Id: I7be4fff7d3fd603b7ab64397a6a05c28f7a34ace

drm/mediacas/plugins/clearkey/ClearKeyFetcher.cpp

@@ -89,7 +89,7 @@ status_t ClearKeyFetcher::ObtainKey(const sp<ABuffer>& buffer,
     // asset_id change. If it sends an EcmContainer with 2 Ecms with different
     // asset_ids (old and new) then it might be best to prefetch the Emm.
     if ((asset_.id() != 0) && (*asset_id != asset_.id())) {
-        ALOGW("Asset_id change from %" PRIu64 " to %" PRIu64, asset_.id(), *asset_id);
+        ALOGW("Asset_id change from %llu to %" PRIu64, asset_.id(), *asset_id);
         asset_.Clear();
     }
 

drm/mediacas/plugins/mock/MockCasPlugin.cpp

@@ -146,7 +146,7 @@ status_t MockCasPlugin::processEcm(
     if (session == NULL) {
         return BAD_VALUE;
     }
-    ALOGV("ECM: size=%d", ecm.size());
+    ALOGV("ECM: size=%zu", ecm.size());
     ALOGV("ECM: data=%s", arrayToString(ecm).string());
 
     return OK;
@@ -156,7 +156,7 @@ status_t MockCasPlugin::processEmm(const CasEmm& emm) {
     ALOGV("processEmm");
     Mutex::Autolock lock(mLock);
 
-    ALOGV("EMM: size=%d", emm.size());
+    ALOGV("EMM: size=%zu", emm.size());
     ALOGV("EMM: data=%s", arrayToString(emm).string());
 
     return OK;