video: driver: Add handling for session priority

Following changes are added with this:
1. Handle and adjust session priority.
2. Session addmission based on priority.
3. Power (clock and bus) scaling based on priority.
4. Handle s_parm influence on priority.

Change-Id: I12dec5fb03d733f07b0b0a24b4d74d1ccd4bf791
Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>

driver/vidc/inc/msm_vidc_internal.h

@@ -124,6 +124,11 @@ enum msm_vidc_codec_type {
 	MSM_VIDC_HEIC              = BIT(3),
 };
 
+enum priority_level {
+	MSM_VIDC_PRIORITY_LOW,
+	MSM_VIDC_PRIORITY_HIGH,
+};
+
 enum msm_vidc_colorformat_type {
 	MSM_VIDC_FMT_NONE = 0,
 	MSM_VIDC_FMT_NV12          = BIT(0),
@@ -686,11 +691,6 @@ struct msm_vidc_decode_batch {
 	struct delayed_work    work;
 };
 
-enum load_calc_quirks {
-	LOAD_POWER = 0,
-	LOAD_ADMISSION_CONTROL = 1,
-};
-
 enum msm_vidc_power_mode {
 	VIDC_POWER_NORMAL = 0,
 	VIDC_POWER_LOW,