msm: clock-9615: Revert to disabling dynamic gating for dma_bam_p_clk

Some bootloaders are still in use which enable dynamic hardware clock
gating for this clock. Re-apply the Linux workaround to forcefully
disable it since it is not supported.

Change-Id: I44909d6cd1913a9a8efe8f96013fa686e8931929
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>