ath10k: Add change interface handler

Change interface handler is not registered with mac80211.
The change interface handler is needed to run p2p go/cli
on the same interface as p2p control interface.

Add change interface handler for ath10k.

CRs-Fixed: 2063870
Change-Id: Ia06850a938b9d5e89d970792e3f0a776693a5f25
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>