boost: disable 'wave' in MIPS16e mode

boost: disable 'wave' in MIPS16e mode

This doesn't compile, see
  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77757#c2

(From OE-Core rev: 59f77d48528498f12cc9d1ba641a9c7ff50ba03a)

(From OE-Core rev: eaed926c023d1e25c29dcfc078c37461e29895b9)

Signed-off-by: André Draszik <adraszik@tycoint.com>
Acked-by: Sylvain Lemieux <slemieux@tycoint.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>