video: driver: add clock residency calculation support

Add logic to derive clock residency values for each
frequency levels.

Change-Id: Iadad29d2733cb083fce627999a31dd96475b73c1
Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>

driver/vidc/inc/msm_vidc_driver.h

@@ -439,6 +439,8 @@ int msm_vidc_change_core_sub_state(struct msm_vidc_core *core,
 int msm_vidc_core_init(struct msm_vidc_core *core);
 int msm_vidc_core_init_wait(struct msm_vidc_core *core);
 int msm_vidc_core_deinit(struct msm_vidc_core *core, bool force);
+int msm_vidc_print_residency_stats(struct msm_vidc_core *core);
+int msm_vidc_reset_residency_stats(struct msm_vidc_core *core);
 int msm_vidc_core_deinit_locked(struct msm_vidc_core *core, bool force);
 int msm_vidc_inst_timeout(struct msm_vidc_inst *inst);
 int msm_vidc_print_buffer_info(struct msm_vidc_inst *inst);