Use canonical_license when doing evaluation of license expresion since
INCOMPATIBLE_LICENSE are already canonized.
[YOCTO #8080]
(From OE-Core rev: 799b25e09a149303edc1c098935f38a438878a95)
Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>