defconfig: arm64: Enable CONFIG_DEBUG_SLUB_PANIC_ON for kona

Induce a panic if the slab debug catches corruption instead
of continuing for debugging.

Change-Id: Id6f2e0f42eb4f0cfd804bccddc7c23dc148993a7
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>