config: tag parallel build options with high build breakage probability with a...

config: tag parallel build options with high build breakage probability with a BROKEN dependency to discourage users from spamming us with tickets about them

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32559 3c298f89-4303-0410-b956-a3cf2f4a3e73