mk_mmc.sh: add these for easy changes

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

mk_mmc.sh

@@ -325,6 +325,22 @@ boot_uenv_txt_template () {
 			##Uncomment to override:
 			#kms_force_mode=video=${drm_device_identifier}:1024x768@60e
 
+		__EOF__
+	else
+		cat >> ${TEMPDIR}/bootscripts/normal.cmd <<-__EOF__
+			##Video: [ls /sys/class/drm/]
+			##Docs: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/fb/modedb.txt
+			##Uncomment to override:
+			#kms_force_mode=video=HDMI-A-1:1024x768@60e
+
+		__EOF__
+
+		cat >> ${TEMPDIR}/bootscripts/netinstall.cmd <<-__EOF__
+			##Video: [ls /sys/class/drm/]
+			##Docs: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/fb/modedb.txt
+			##Uncomment to override:
+			#kms_force_mode=video=HDMI-A-1:1024x768@60e
+
 		__EOF__
 	fi