linux-firmware: properly set license for all Qualcomm firmware

linux-firmware: properly set license for all Qualcomm firmware

It is not enough to depend on the ${PN}-qcom-license package. Set
LICENSE variable for all the qcom packages to point to the proper
license.

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>
(cherry picked from commit 9dc41e18dc138a7cce920f8e4c85eb3130c0d553)
Signed-off-by: Steve Sakoman <steve@sakoman.com>