UPSTREAM: ath10k: Add peer delete response event

Peer creation in firmware fails if last peer deletion is still
in progress.

The firmware sends a peer delete response event if it advertises
the service WMI_SERVICE_SYNC_DELETE_CMDS. This peer delete response
event is used to synchronize the peer deletion.

Add peer delete response event and wait for the event after
deleting every peer from host driver to synchronize with firmware.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Dundi Raviteja <dundi@codeaurora.org>
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Change-Id: Iea5367f7664399c178b5749f7f9f46d7730ee787
Git-commit: c6f537a11b812c50decb8d5fa470e5e2a0ce354f
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git


[bpothuno@codeaurora.org: fix trivial merge conflicts]
Signed-off-by: Balaji Pothunoori <bpothuno@codeaurora.org>