tfa-next: adapt generic tests to support more repositories

This allows us to run `cargo test` on other repositories
that are not trusted-firmware.

Change-Id: I79242f3975f95f2e81c2a6d5c2033858e5a37461
Signed-off-by: Tomás González <tomasagustin.gonzalezorlando@arm.com>
1 file changed