video: driver: add try_fmt allow checks inside state handler

Remove msm_vidc_allow_s_fmt function and use state specific
MSM_VIDC_TRY_FMT checks inside state_handler

Change-Id: I405b9cfb89e4daadafcc05eb99e66e2b0aad328e
Signed-off-by: Megha Byahatti <quic_mbyahatt@quicinc.com>

driver/vidc/inc/msm_vidc_state.h

@@ -19,6 +19,7 @@ struct msm_vidc_core;
 }
 
 #define FOREACH_EVENT(EVENT) {                         \
+	EVENT(TRY_FMT)                                 \
 	EVENT(S_FMT)                                   \
 	EVENT(REQBUFS)                                 \
 	EVENT(S_CTRL)                                  \