disp: msm: sde: add pr_fmt for SDE VM layer

Add pr_fmt definition in SDE VM modules for simplifying
searching for DRM driver logs.

Change-Id: I3f83b52dec6479dd89306aed7d84e73928f4e9ef
Signed-off-by: Steve Cohen <cohens@codeaurora.org>

msm/sde/sde_vm_trusted.c

@@ -3,6 +3,8 @@
  * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
  */
 
+#define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
+
 #include <linux/gunyah/gh_rm_drv.h>
 #include <linux/gunyah/gh_irq_lend.h>
 #include <linux/gunyah/gh_mem_notifier.h>
@@ -15,7 +17,6 @@
 #include "sde_vm.h"
 #include "sde_vm_msgq.h"
 
-
 #define to_vm_trusted(vm) ((struct sde_vm_trusted *)vm)
 
 static int __sgl_cmp(const void *a, const void *b)