linux-firmware: add yamato fw files to qcom-adreno-a2xx package

linux-firmware: add yamato fw files to qcom-adreno-a2xx package

Newest linux-firmware release got firmware for Adreno A200. Add these
two files to the ${PN}-qcom-adreno-a2xx package. As these files are
licensed under a separate BSD-3-Clause license, add separate license
package too.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>