platform: msm_shared: Add support for rpmb_wr_count = 32 for emmc 5.1 and above

Add support for rpmb_wr_count = 32 for emmc 5.1 and above. This assumes
that we get block counts in exact multiples of 32 from secure app. Also
increase the emmc completion poll timeout to 9 seconds as some rpmb
commands take more time to complete.

Change-Id: I06235a0087074fc7d4b27f4d019529c0dd78a8b8
2 files changed