msm: ipa3: increase pkt ctx for cv2x rsrc grp

Made the changes to increase rsrc pkt conexts
from 1 to 6 to support cv2x auto case.

Change-Id: I2f9774fd473248ce4f86748be83c2a9b58ab16a8
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>