Patch arch test build to use inherited toolcahin

To allow the arch test library to be built using the parent
cmake toolchain, a new toolchain called INHERIT has been patched
into the fetched arch test build files.

Signed-off-by: Julian Hall <julian.hall@arm.com>
Change-Id: I9fa9903ff8dcd904161c531aa327682d692d4756
2 files changed