When using busybox mount the filesystem won't get remounted as 'rw' and bootup will fail.
This fixes the regression seen after switching from 'danny' to 'dylan'.
(From OE-Core rev: 15a91361a0b5a44161d2dbcf2be6240d86123ad9)
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>