We're repeating the same make invocation over and over, twice without setting
OPT=${CFLAGS} which doesn't seem right.
Centralise the make invocation to clean up the tasks.
(From OE-Core rev: d2b5bf97eedc67f77d87a44bab86ab086176b8db)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>