msm: ipa: fix GSI enable for GSI 1.2

GSI version is not passed correctly to GSI driver in order
to enable MCS.

Change-Id: I00f456de830c84dcf736eea5332c501bd15f4aef
CRs-Fixed: 1097871
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
Signed-off-by: Amir Levy <alevy@codeaurora.org>