msm: vidc: pm qos stability fixes for video driver.

Stability issues are observed, if pm qos request removes without adding it.
Check pm qos request status before remove it.
The default request type PM_QOS_REQ_ALL_CORES is applicable to
all CPU cores that are online and would have a power impact when there are
more number of CPUs. Specify a request type as PM_QOS_REQ_AFFINE_IRQ.

CRs-Fixed: 995426
Change-Id: I738f201ed126c6be4076c582c37999362e1d0e88
Signed-off-by: Srinu Gorle <sgorle@codeaurora.org>