mmc: msm_sdcc: enable SDCC test bus debugging

SDCC controller on recent chipsets (ex. MSM8974) provides the
capability to print it's internal controller state information
by enabling appropriate test bus.

This change print these debugging information during error conditions
to ease debugging tough to debug SDCC controller issues.

Change-Id: I9e942fe4b8ee41c2806db47cf0019bb57c5f66c1
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
2 files changed