FROMLIST: media: qcom: iris: increase H265D_MAX_SLICE to fix H.265 decoding on SC7280

Follow commit bfe1326 ("venus: Fix for H265 decoding failure.")
and increase H265D_MAX_SLICE following firmware requirements on that
platform. Otherwise decoding of the H.265 streams fails withthe
insufficient scratch_1 buffer size from the firmware.

Link: https://lore.kernel.org/all/20260327-venus-iris-flip-switch-v5-3-2f4b6c636927@oss.qualcomm.com/
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Author: lumag

drivers/media/platform/qcom/iris/iris_vpu_buffer.h

@@ -62,7 +62,7 @@ struct iris_inst;
 #define SIZE_DOLBY_RPU_METADATA (41 * 1024)
 #define H264_CABAC_HDR_RATIO_HD_TOT	1
 #define H264_CABAC_RES_RATIO_HD_TOT	3
-#define H265D_MAX_SLICE	1200
+#define H265D_MAX_SLICE	3600
 #define SIZE_H265D_HW_PIC_T SIZE_H264D_HW_PIC_T
 #define H265_CABAC_HDR_RATIO_HD_TOT 2
 #define H265_CABAC_RES_RATIO_HD_TOT 2