defconfig: enable memlat hw log driver

Enable memlat hw logging driver, required to collect
the logs from memlat hw, and dump in dedicated buffers
through ipc logging framework.

Change-Id: I391040be6bd110e96e96cdf0a3fbf7f34f0d9111
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>