mmc: cqhci: Port two trivial fixes in cqhci from earlier kernels

This is a squash of below two minor fixes:

8fec754f57a8 mmc: cmdq: trigger get queue status after dcmd
327fd3225911 mmc: cqhci: CQ Register changes for v5.0 onwards.

Change-Id: I1bb6cae5a647c4ea189a992d5ace7b6c1e3a1c87
Signed-off-by: Sarthak Garg <sartgarg@codeaurora.org>