msm: compr: Use irq{save/restore} version of spinlock

compress driver event handler uses spin_lock/unlock APIs.
It should be sufficient to use the irq{save/restore} versions.

Change-Id: I8f32c6896396a09faa1baf741bd182d8ceb4301a
Signed-off-by: Haynes Mathew George <hgeorge@codeaurora.org>