video: driver: modify max mapped output count

adjust MAX_MAP_OUTPUT_COUNT based on resolution
to enhance performance and reduce memory pressure.
- For 8K session: count = 20
- For 4K session: count = 32
- For 1080p session: count = 48
- For all remaining sessions: count = 64

reduce MAX_DPB_COUNT to 32.
reduce DEFAULT_MAX_HOST_BUF_COUNT to 64.

Change-Id: I0e6d25121947524b843e9cce96b75871aba174af
Signed-off-by: Darshana Patil <darshana@codeaurora.org>

driver/vidc/inc/msm_vidc_inst.h

@@ -153,5 +153,6 @@ struct msm_vidc_inst {
 	bool                               vb2q_init;
 	u32                                max_input_data_size;
 	u32                                dpb_list_payload[MAX_DPB_LIST_ARRAY_SIZE];
+	u32                                max_map_output_count;
 };
 #endif // _MSM_VIDC_INST_H_