hw: add CSU I/O memory to core's memory regions

The central security regions has to be mapped when starting the hw-kernel
on the i.MX53 and using the TrustZone mechanisms.

Ref #1182
hw: fixup the TrustZone VM entry path

Commit 6a3368ee that refactored the mode transition assembler path, and
high-level entry point, fundamentally broke that part for the TrustZone VMs.
Instead of jumping to the appropriated address, the instruction value at that
point where used as target address.
Moreover, the TrustZone part of the mode transition page was not included into
the boundary check.

Ref #1182
trustzone: automate run script for nightly tests

Ref #1182
fixup: "trustzone: automate run script for nightly tests"
L4Linux: Disable netperf USB 3.0 test for x86

Issue #1189
L4Linux: USB netperf tests on Arndale only

Issue #1189