EGL Multifile Blobcache: Upgrade trim to WARN

Per request from partners, make logcat entry more visible
when trimming the cache.

Test: libEGL_test, EGL_test
Bug: b/351867582
Flag: EXEMPT log only update
Change-Id: Ibe89166b6fa90cb973a96757cba89de7461762f4

Author: cnorthrop

opengl/libs/EGL/MultifileBlobCache.cpp

@@ -356,7 +356,7 @@ void MultifileBlobCache::set(const void* key, EGLsizeiANDROID keySize, const voi
 
     // If we're going to be over the cache limit, kick off a trim to clear space
     if (getTotalSize() + fileSize > mMaxTotalSize || getTotalEntries() + 1 > mMaxTotalEntries) {
-        ALOGV("SET: Cache is full, calling trimCache to clear space");
+        ALOGW("SET: Cache is full, calling trimCache to clear space");
         trimCache();
     }