drm/msm: fix small typo

Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/msm_drv.c

@@ -61,7 +61,7 @@ module_param(fbdev, bool, 0600);
 #endif
 
 static char *vram = "16m";
-MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU");
+MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU)");
 module_param(vram, charp, 0);
 
 /*