ath10k: ath11k: add specific LinuxKPI support

Add files needed by ath1?k drivers to linuxkpi/linuxkpi_wlan.
This contain (skeleton) implementations of what is needed to
compile but specifically mhi/qmi/qrtr will need more work for
ath11k.

(cherry picked from commit 06a1103fe38677ba6213cae321255f53e9476dcd)
(cherry picked from commit 047298203fc3bc2b290f44b9531a7b7d553fe9b7)
(cherry picked from commit bee50f894b9e0b51668c83e24bf2ec7c275725eb)