msm: pil-q6v5-mss: Skip Q6 shutdown sequence when restarting MSS

Execution of the Q6 shutdown sequence is not necessary since the
whole subsystem is reset as part of pil_mss_shutdown() anyway.
Furthermore, access to the Q6 registers required by
pil_q6v5_shutdown() may be blocked after MSS boot (depending on
security configurations) making such access fail.

Fix this by removing the unnecessary call to pil_q6v5_shutdown(),
and the associated clock and power-rail setup required to make
that call.

Change-Id: Ica82474b6157f7b12abb877e7443f6335480855c
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
msm: pil-q6v5-mss: Increase timeout for PBL and MBA boot to 1 second

When secure boot features are enabled, the MBA may need more than
100 ms before it is ready to accept commands. Increase the default
timeout to be arbitrarily large.

Change-Id: I3b9d63f13140e7c044650c28be39efea41dcf192
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Merge "msm: pil-q6v5-mss: Skip Q6 shutdown sequence when restarting MSS"
Merge "msm: pil-q6v5-mss: Increase timeout for PBL and MBA boot to 1 second"