TF-A: upgrade Arm GCC toolchain to 10.2-2020.11

Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
Change-Id: I7f94cee5b7f1c94c042fa2dcb1eff6c65943cc07
1 file changed