Note: Downgrading of m4 would require rebuilding of the autoconf
Fixed circular depedency with the newer autoconf
(From OE-Core rev: b581c965b4fbaaa819aa3809db037578f61a56eb)
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>