Bumped the default version of the "arm-trusted-firmware" (a.k.a. TF-A)
from 2.5 to 2.7: updated the config and the tarball checksum.
Work-around CVE-2022-23960.
Updated the "qemu_aarch64_sbsa_defconfig" accordingly: it was using an
"arm-trusted-firmware" v2.4, it nows selects version 2.7.
Updated the license checksum because the license file changed
slightly: it mentions an additional file ("irq.h") released under a
dual GPL or MIT license.
Tested with the "qemu_aarch64_sbsa_defconfig" and QEMU: it boots
without new warning or error message.
Release notes:
<https://trustedfirmware-a.readthedocs.io/en/latest/change-log.html>
Signed-off-by: Olivier L'Heureux <olivier.lheureux@mind.be>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
