When all clients remove DDR bandwidth vote, DDR may power collapse.
As part of its shutdown sequence, it waits for an 'active' signal to
no longer be asserted by the gpu cx gdsc. Thus, if SW votes for the
gdsc to be active, but not for DDR bandwidth, this sequence may
get stuck.
Change-Id: I48d704f08cfe6d17159eb04d02f5ed123809f967
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>