spi: bcm-qspi: Make PM suspend/resume work with SCMI clock management

SCMI only passes clk_prepare_enable() and clk_disable_unprepare(), made
changes to suspend/resume ops to use the appropriate calls so that PM
works for ARM and ARM64 platforms.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Link: https://lore.kernel.org/r/20200420190853.45614-7-kdasu.kdev@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>