gpu: drm: amd/radeon: Convert printk(KERN_<LEVEL> to pr_<level>

Use a more common logging style.

Miscellanea:

o Coalesce formats and realign arguments
o Neaten a few macros now using pr_<level>

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c
index 857ba08..3889486 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c
@@ -74,9 +74,9 @@
 
 	/* Check that we are in spec (not always possible) */
 	if (n < (128*freq/1500))
-		printk(KERN_WARNING "Calculated ACR N value is too small. You may experience audio problems.\n");
+		pr_warn("Calculated ACR N value is too small. You may experience audio problems.\n");
 	if (n > (128*freq/300))
-		printk(KERN_WARNING "Calculated ACR N value is too large. You may experience audio problems.\n");
+		pr_warn("Calculated ACR N value is too large. You may experience audio problems.\n");
 
 	*N = n;
 	*CTS = cts;