drm/vkms: change the max cursor width/height

This change expands the coverage for the IGT kms_cursor_crc test, where
the size varies between 64 and 512 for a square cursor. With this, in
addition to the cursor 64x64, this patch enables the test of cursors with
sizes: 128x128, 256x256, and 512x512.

Signed-off-by: Melissa Wen <[e-mail]>
Reviewed-by: Rodrigo Siqueira <[e-mail]>
Signed-off-by: Rodrigo Siqueira <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/vkms/vkms_drv.c

···
 	dev->mode_config.min_height = YRES_MIN;
 	dev->mode_config.max_width = XRES_MAX;
 	dev->mode_config.max_height = YRES_MAX;
+	dev->mode_config.cursor_width = 512;
+	dev->mode_config.cursor_height = 512;
 	dev->mode_config.preferred_depth = 24;
 	dev->mode_config.helper_private = &vkms_mode_config_helpers;