HACK: tests: disable output disasm for 1 ARC test

For baffling reasons, the ARC objdump is crashing when
creating the disassembly for the power/multicore/arc
test.

It is known that the patch for adding user mode support
to k_queue objects introduces this issue, but why objdump
crashes is yet unknown.

The compiler problem is tracked in #7608

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>