msm: ipa4: add wigig client

Add IPA client named ipa_wigig. This client provides API for
the 11AD protocol driver to configure IPA for 11AD clients offload.
Currently up to 4 clients are supported. The clients share the RX
pipe and have a separate TX pipe. The ipa_wigig client shall SMMU map
11AD HW registers and buffers and shall configure IPA uC and GSI for
11AD clients offload.

Change-Id: I6c87dcea5d6e8e0b861cc402d52a83d8388af90d
Signed-off-by: Amir Levy <alevy@codeaurora.org>