linux-firmware: Set the license for carl9170 to GPLv2
linux-firmwara-carl9170 was set to a wrong license string.
Carl9170 firmware is bounded by GPLv2 via code inspection on
linux firmware source tree. Hence we include GPLv2 in LICENSE
field and set carl9170 firmware to the correct license.
[YOCTO #11090]
Signed-off-by: Ng, Wei Tee <wei.tee.ng@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com>
