mmc: sdhci-msm: dump vendor specific registers during error

Implement dump_vendor_registers host operation to print the
vendor specific registers in addition to standard SDHC
register during error conditions.

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Sarthak Garg <sartgarg@codeaurora.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1590139950-7288-9-git-send-email-sartgarg@codeaurora.org


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