e.g. libfl from flex is needed for target
binutils to link otherwise it can fail to build
(From OE-Core rev: 627725700ee9e2ca39a19f19a77cd772cd8ecf9f)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>