msm: vidc: set unique value for mvc profile

HAL_MVC_PROFILE_STEREO_HIGH has the same value as
HAL_H264_PROFILE_BASELINE. When profile information is
to be set to firmware, the driver looks up the profile_level
table. Since stereo and baseline profiles have the same
values, the table returns the profile level as
HFI_H264_PROFILE_STEREO_HIGH instead of HFI_H264_PROFILE_BASELINE.
This results in incorrect profile being set to firmware,
leading to a firmware crash.

Change-Id: I698029f4d8c869bdb75fe935a63f63ff6f73fed0
Signed-off-by: Arun Menon <avmenon@codeaurora.org>