drm/i915/gvt: Constify vgpu_types

It is never modified, so make it const to allow the compiler to put it
in read-only memory. While at it, make name a const char*.
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20211204105527.15741-10-rikard.falkeborn@gmail.comReviewed-by: Zhi Wang <zhi.a.wang@intel.com>

drivers/gpu/drm/i915/gvt/vgpu.c

@@ -77,7 +77,7 @@ void populate_pvinfo_page(struct intel_vgpu *vgpu)
 #define VGPU_WEIGHT(vgpu_num)	\
 	(VGPU_MAX_WEIGHT / (vgpu_num))
 
-static struct {
+static const struct {
 	unsigned int low_mm;
 	unsigned int high_mm;
 	unsigned int fence;
@@ -88,7 +88,7 @@ static struct {
 	 */
 	unsigned int weight;
 	enum intel_vgpu_edid edid;
-	char *name;
+	const char *name;
 } vgpu_types[] = {
 /* Fixed vGPU type table */
 	{ MB_TO_BYTES(64), MB_TO_BYTES(384), 4, VGPU_WEIGHT(8), GVT_EDID_1024_768, "8" },