msm: ipa3: fix holb sequence for SSR

The correct sequence for enabling HOLB drop is first
to suspend the pipe and then to HOLB drop.

Change-Id: I78b7b268eec230a4993e446bd90846f800364e06
CRs-Fixed: 2141518
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>