AtFwd hal is implemented as an android service and
it stars from system partition, that is, it's not
a traditional vendor hal and hence it should be
declared in the framework manifest and not in the
device manifest.
This commit introduces new device specific framework
manifest (framework_manifest.xml) and moves AtFwd hal
from device to framework manifest.
Bug: 68662838
Test: vts_treble_vintf_test atcmdfwd service is served
Change-Id: I9df05206fbe067ddf19a96fc52aba6b2cc922172
(cherry picked from commit b2895ddbcf1cc0b8986b4a80a43a3f0b6eb9fd66)
