This commit bumps ARC toolchain to arc-2020.03-release.
ARC GNU tools of version arc-2020.03-release bring some quite significant
changes like:
* Binutils 2.34 with additional ARC patches
* GCC 9.3 with additional ARC patches
* glibc 2.30 with additional ARC patches
* GDB 10-prerelease with additional ARC patches
Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: arc-buildroot@synopsys.com
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
