Update buildroot to 2020.02.7 (#923)

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>

buildroot/support/dependencies/dependencies.sh

@@ -180,6 +180,12 @@ if test "${missing_progs}" = "yes" ; then
 	exit 1
 fi
 
+# apply-patches.sh needs patch with --no-backup-if-mismatch support (GNU, busybox w/DESKTOP)
+if ! patch --no-backup-if-mismatch </dev/null 2>/dev/null; then
+	echo "Your patch program does not support the --no-backup-if-mismatch option. Install GNU patch"
+	exit 1
+fi
+
 if grep ^BR2_NEEDS_HOST_UTF8_LOCALE=y $BR2_CONFIG > /dev/null; then
 	if ! which locale > /dev/null ; then
 		echo