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>
diff --git a/tests/power/multicore/arc/prj.conf b/tests/power/multicore/arc/prj.conf
index 3692179..fb4197a 100644
--- a/tests/power/multicore/arc/prj.conf
+++ b/tests/power/multicore/arc/prj.conf
@@ -8,3 +8,5 @@
 CONFIG_UART_CONSOLE_ON_DEV_NAME="UART_0"
 CONFIG_IPM=y
 CONFIG_IPM_QUARK_SE=y
+# Work around very strange compiler bug #7608
+CONFIG_OUTPUT_DISASSEMBLY=n