video: Rename structs and functions to avoid VBE

Rename these to VESA, itself an abbreviation, to avoid a conflict with
Verified Boot for Embedded.

Rename this to avoid referencing VBE.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/ivybridge_igd.c b/drivers/video/ivybridge_igd.c
index 18672a1..9264dd6 100644
--- a/drivers/video/ivybridge_igd.c
+++ b/drivers/video/ivybridge_igd.c
@@ -762,7 +762,7 @@
 	rev = gma_func0_init(dev);
 	if (rev < 0)
 		return rev;
-	ret = vbe_setup_video(dev, int15_handler);
+	ret = vesa_setup_video(dev, int15_handler);
 	if (ret)
 		return ret;