QBT1000: fix release change SPI ownership and vote for sleep

This fix modifies the sequence in qbt1000_release() and
qbt1000_remove() functions to first change SPI ownership to SSC,
only then request SSC to vote for sleep.

Change-Id: I1b6a5a407741665bd99e18c7a874d59f3e3a98f4
Signed-off-by: Lior Barenboim <liorb@codeaurora.org>