msm: vidc: Update CVP skip pattern logic

Update CVP metadata skip logic to send a frame for CVP
processing every time frame rate or operatimg rate changes
dynamically. This helps in handling skipping of CVP metadata
processing for a random number of frames whenever frame rate
or operating rate changes dynamically, and avoid sending
CVP metadata to video firmware for an unpredictable frame.

Signed-off-by: Akshata Sahukar <asahukar@codeaurora.org>

Change-Id: I049f0c0ade1700816203713cd82382c2a614f20a