Use latest release build instead of a git snapshot. As this tarball
extracts in a trusted-firmware-a-2.8 subdirectory, we no longer need to
override the PKG_NAME defined in trusted-firmware-a.mk. The actual
package name is still the same, so we don't need to update any
dependencies.
Tested on A64-OLinuXino-1Ge16GW.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
53796f9248