defconfig: Enable CPU Subsystem dump driver for kona

CPU Subsystem driver is to dump instruction and data tlbs to a buffer.
This is used to analyze data in case of corruption. To support this
feature, enable this driver for kona.

Change-Id: I3964bb120bb87469b2ba131ae871a6d2167e8282
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>