In multilib and baremetal configurations, this variable can cause a variety of
problems due to the use of TCLIBC. At least allowing it to be overriden
is a start and allows various configurations to avoid the issue.
(From OE-Core rev: cfc43743b0e41cf168cad9cbd4e9d870b8f01f03)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>