ANDROID: trusty: Print error message if trusty_nop_thread runs on wrong cpu

Trusty will not function correctly if the an interrupt for a specific
cpu causes Linux to call into trusty on a different cpu. This change
will print an error message when it detect the kthread has woken up on
the wrong cpu, but it does not fix the problem that causes this.

Bug: 266595872
Change-Id: I8918a4039830f5c1de55af6b507b366b0ea6c182
Signed-off-by: Arve Hjønnevåg <arve@android.com>