fix: lts case

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

mk_mmc.sh

@@ -195,14 +195,12 @@ dl_kernel_image () {
 	echo ""
 	echo "Downloading Device's Kernel Image"
 	echo "-----------------------------"
-	unset lts_grep
 
 	if [ "x${cmd_kernel_override}" = "xenable" ] ; then
 		unset kernel_selected
 		if [ "x${cmd_LTS41_KERNEL}" = "xenable" ] ; then
 			kernel_repo="LTS"
 			kernel_selected="true"
-			lts_grep="true"
 		fi
 		if [ "x${cmd_LTS44_KERNEL}" = "xenable" ] ; then
 			kernel_repo="LTS44"
@@ -222,6 +220,11 @@ dl_kernel_image () {
 		fi
 	fi
 
+	unset lts_grep
+	if [ "x${kernel_repo}" = "xLTS" ] ; then
+		lts_grep="true"
+	fi
+
 	if [ ! "${KERNEL_DEB}" ] ; then
 		${dl_quiet} --directory-prefix="${TEMPDIR}/dl/" "${MIRROR}/latest/${DISTARCH}/LATEST-${kernel_subarch}"
 		echo "-----------------------------"