msm: vidc: Reject operating rate beyond specification

Operating rate denote the rate at which frames are processed
by video hardware. This change keeps the rate within the
min,max range.
There is a special handling for rate as INT_MAX. For such
case, video session is configured as TURBO. Hence such
case is allowed beyond the min, max range.

Change-Id: Ied4be11e8b3c3f040bd8cdac23deb8e786603589
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>