UPSTREAM: ath10k: add hif rx methods for wcn3990

Add hif rx methods in rx path for wcn3990
target.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Git-commit: d9151052
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git


Change-Id: I7e8ea5f47f544f450546894fb20c393cda15a102
Signed-off-by: Dundi Raviteja <dundi@codeaurora.org>