Revert "Modem firmware pets that conform to modem-firmware path"

This reverts commit 167028df5e3d293a7b4671aa5a6170f36d5805f5.
Revert "Move firmware to the conventional /lib/firmware"

This reverts commit 1c9a60ed9fb5ee2e2a510f142faf959f49cd12d5.
Merge remote-tracking branch 'origin/master' into testing
Add firmware_move_func

removal of firmware_tarball_func in a90e4ce7e9d928354eade909a91126286ddfa401
broke wireless firmware installation. Reinstate till we get rid off
firmware in /lib/modures