Use libc-uclibc override to seprate out uclibc bits
instead of using TARGET_OS
(From OE-Core rev: e1f0ba3b1cccaf8e209d63dab638b341c029aae6)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>