disp: msm: enable event log and disp ramdump without DEBUG_FS

This patch allows event log and display ramdump
module compilation when DEBUG_FS config is in disabled
state.

Change-Id: Ibe1ff7d9d4a4f3c64091df757caba2450295e7ec
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

msm/sde_dbg.c

@@ -5287,7 +5287,7 @@ void sde_dbg_ctrl(const char *name, ...)
 	va_end(args);
 }
 
-
+#ifdef CONFIG_DEBUG_FS
 /*
  * sde_dbg_debugfs_open - debugfs open handler for evtlog dump
  * @inode: debugfs inode
@@ -6249,6 +6249,15 @@ int sde_dbg_debugfs_register(struct device *dev)
 	return 0;
 }
 
+#else
+
+int sde_dbg_debugfs_register(struct device *dev)
+{
+	return 0;
+}
+
+#endif
+
 static void _sde_dbg_debugfs_destroy(void)
 {
 }