The AndroidManifest template for a project is copied from "C:\Users\<user name>\AppData\Roaming\Embarcadero\BDS\22.0\AndroidManifest.xml"
This Template is then used to build the AndroidManfest.xml to be included in the final package.
If "C:\Users\<user name>\AppData\Roaming\Embarcadero\BDS\22.0\AndroidManifest.xml" does not exist it is copied from the IDE's ObjRepository folder
In the older projects the manifest template data persisted in the Android\Debug build directory so may need to be deleted in all Compiler output directories.
I have had some success by deleting all files in the Build directory ie. Android\Debug\
I have had no success using the recommended method of refreshing the SDK by right clicking the Android Target and Reverting System Files to Default and rebuilding
Frm Support
For some customers I have had to advise to delete "C:\Users\<user name>\AppData\Roaming\Embarcadero\BDS\22.0\AndroidManifest.xml"
Our installer does not remove any files from this directory. Normally when installing an update this doesn't matter but we had to change the SDK in update 2 to comply. The build system copies the AndroidManifest template from the above file. This is copied to the appdata directory from the the IDE's ObjRepository folder but this only happens if it doesn't exist in the above location.