AOSP Gallery2 API level downgrade

The targetSdkVersion in the AndroidManifest.xml file
of the AOSP Gallery2 app has been downgraded to 28.
This reason for this is that there have been reports
of a storage bug in the newer API level.

BUG: 166765965
Change-Id: I2e057b2b4d859858d17f58a7abc0fd17039ed14a
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index c281ef4..ba488ae 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -7,7 +7,7 @@
 
     <original-package android:name="com.android.gallery3d" />
 
-    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="30" />
+    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="28" />
 
     <permission android:name="com.android.gallery3d.permission.GALLERY_PROVIDER"
             android:protectionLevel="signatureOrSystem" />