TrustZone vmm: rename to tz_vmm due to ambiguity
hw_imx53: use same link address with or without TZ
hw_vea9x4: re-enable TrustZone support
tz_vmm: make scenario reproducible by everyone
netperf: move check for qemu to netperf.inc
netperf: insert missing blank in config
lxip: remove declaration of wait_for_continue()
lxip: fake get_random_bytes()
lxip: coding style
lxip: disable qemu check for testing (WIP)

@ssumpf please give lxip a shot under nova_x86_64 or any other 64bit
platform. After implementation of get_random_bytes(), the netperf test
actually begins but does not finish.