Use gradle based signing mechanism for the modern Android bundles.
From the interface perspective signing remains unchanged:
QT_ANDROID_SIGN_<AAB|APK> flags control if the package should be
signed. The credentials are taken from the QT_ANDROID_KEYSTORE_*
environment variables.
Signing is done in separate CMake script to avoid storing passwords
inside build scripts. Scripts reads passwords from the environment
when the respective signing rule is running.
Change-Id: Id1097b2b6d011a63c58e5a441c5360a1a5d97e8f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Alexey Edelev