We need to handle the UCLIBC_* linker variables in the same way
as we do the GLIBC_* ones to allow uclibc multilib to work properly.
(From OE-Core rev: 025ec5958b7e1fd71caa0079ec3c573126b30886)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>