defconfig: arm64: Add coresight abort support for msmcobalt

Enable CoreSight abort for msmcobalt. CoreSight driver will
dump any trace present in the current sink in case we hit a
kernel panic, user fault or an undefined instruction.

Change-Id: Iff2fdfb547617425182429d95fb1d3b9a2e4321f
Signed-off-by: Satyajit Desai <sadesai@codeaurora.org>