video: driver: debugfs update for clockrate,bandwidth setting

/d/msm_vidc/core_clock_voting will modify only clock rate
and not ddr and llc bandwidth.
example usage:
adb shell "echo 444000000 > /d/msm_vidc/core_clock_voting".

introduction of /d/msm_vidc/ddr_bw and /d/msm_vidc/llcc_bw
which will modify ddr and llc bandwidth respectively.
example usage:
adb shell "echo 5000000 > /d/msm_vidc/ddr_bw_kbps".
adb shell "echo 7000000 > /d/msm_vidc/llc_bw_kbps".

Change-Id: If4aca728cae212630928dda69a38310d8268b5e1
Signed-off-by: Darshana Patil <darshana@codeaurora.org>

driver/vidc/inc/msm_vidc_debug.h

@@ -34,6 +34,8 @@ extern unsigned int msm_vidc_debug;
 extern bool msm_vidc_lossless_encode;
 extern bool msm_vidc_syscache_disable;
 extern int msm_vidc_clock_voting;
+extern int msm_vidc_ddr_bw;
+extern int msm_vidc_llc_bw;
 extern bool msm_vidc_fw_dump;
 extern unsigned int msm_vidc_enable_bugon;