x86: bootstage: Add time measurement for vesa start-up

Since we must run a PCI BIOS ROM, and this can take a calamitous amount of
time, measure it using bootstage.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

drivers/video/vesa_fb.c

@@ -42,8 +42,10 @@ void *video_hw_init(void)
 			printf("no card detected\n");
 			return NULL;
 		}
+		bootstage_start(BOOTSTAGE_ID_ACCUM_LCD, "vesa display");
 		ret = pci_run_vga_bios(dev, NULL, PCI_ROM_USE_NATIVE |
 				       PCI_ROM_ALLOW_FALLBACK);
+		bootstage_accum(BOOTSTAGE_ID_ACCUM_LCD);
 		if (ret) {
 			printf("failed to run video BIOS: %d\n", ret);
 			return NULL;