msm: timer: add api to read sleep counter

The DSPS driver uses the sleep counter to synchronize itself to the MPM
time. The sensors processor synchronizes itself to this as well.

Change-Id: Iaca37c610d171ff85d72f789e8b01936a449a77a
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
2 files changed