msm: 9615: Add xo voting support

1. Set CXO active and sleep set votes during init time
and invoke the xo driver from the 9615 board file.

2. Enable the msm_xo driver for 9615 in the msm Kconfig

Change-Id: I3286e6f12e73b6286593037157a1a91605df7ce0
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
3 files changed