disp: msm: make msm_drm into single module

Make msm_drm into single module and all child driver
registers and unregisters are handled from parent's
register and unregister respectively.

Change-Id: I017513d1de3b6b25dd5543d7fa7741c0bac1740d
Signed-off-by: Shashank Babu Chinta Venkata <sbchin@codeaurora.org>
Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>

msm/sde/sde_trace.h

@@ -113,7 +113,7 @@ TRACE_EVENT(sde_encoder_underrun,
 		__entry->underrun_cnt)
 );
 
-TRACE_EVENT(tracing_mark_write,
+TRACE_EVENT(sde_drm_tracing_mark_write,
 	TP_PROTO(char trace_type, const struct task_struct *task,
 		const char *name, int value),
 	TP_ARGS(trace_type, task, name, value),
@@ -390,7 +390,7 @@ TRACE_EVENT(sde_perf_uidle_status,
 			)
 );
 
-#define sde_atrace trace_tracing_mark_write
+#define sde_atrace trace_sde_drm_tracing_mark_write
 
 #define SDE_ATRACE_END(name) sde_atrace('E', current, name, 0)
 #define SDE_ATRACE_BEGIN(name) sde_atrace('B', current, name, 0)