msm: gsi: Update Channel 0 context structure

Channel 0 context structure reused bit 13 for
protocol number MSB. This is to accommodate new
added protocols. This change adds support for
this bit.

CRs-Fixed: 2262057
Change-Id: If8b828ce6c78b758ec5d57542d4d5f2ca4611ba6
Signed-off-by: Ghanim Fodi <gfodi@codeaurora.org>