scsi: ufs-qcom: dump additional testbus registers

Change testbus default config, dump additional testbus
registers and ufs phy regs along with other debug vendor
specific registers. These additional info are useful
in debugging link related failures.

Change-Id: Icfa44def6d461a5782f7f57cefb78ed5e57a50d0
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>