acs: use toolchain from docker image

Move away from using the toolchain provided by hafnium prebuilts
submodule. Use the pre-installed toolchain from the docker image.

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I6a67a390585bebb022d17f011107295301dd6170
1 file changed
tree: dce9d6521b13e73178cb25c144800a46aa31127d
  1. acs/