Drop prebuilt files to android source tree.

CtsShim.apk
package: name=com.android.cts.ctsshim
versionCode=30
versionName=11-6508977
platformBuildVersionName=R
compileSdkVersion=29
compileSdkVersionCodename=R
sdkVersion:24
targetSdkVersion:28

CtsShimPriv.apk
package: name=com.android.cts.priv.ctsshim
versionCode=30
versionName=11-6508977
platformBuildVersionName=R
compileSdkVersion=29
compileSdkVersionCodename=R
sdkVersion:24
targetSdkVersion:28

CtsShim.apk
package: name=com.android.cts.ctsshim
versionCode=30
versionName=11-6508977
platformBuildVersionName=R
compileSdkVersion=29
compileSdkVersionCodename=R
sdkVersion:24
targetSdkVersion:28

CtsShimPriv.apk
package: name=com.android.cts.priv.ctsshim
versionCode=30
versionName=11-6508977
platformBuildVersionName=R
compileSdkVersion=29
compileSdkVersionCodename=R
sdkVersion:24
targetSdkVersion:28

Built here: ab/6508977

This build IS suitable for public release.

The change is generated with prebuilt drop tool.

Test: presubmit
Bug: 155355480
Change-Id: I9b22b8f2a6678d87e25819fad8d848ac5af288cc