Add CQHCI initialization and implement CQHCI operations for GL9763E.
Use bit19 of the register (0x888) to decide whether to disable command
queuing. If the bit is set, the command queuing will be disabled.

Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Link: https://lore.kernel.org/r/20201005105509.11343-1-ben.chuanggli@gmail.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>