arm64: defconfig: Enable minidump for ipc log buffers

This config is used to pass maximum number of ipc logging memory
regions that can be dumped with minidump. This includes ipc log
buffers and memory regions for global context list and ipc log
contexts for which minidump is enabled.

Change-Id: If735ed093ef9efa3f0b0a2225babe2d26a3c79d4
Signed-off-by: Deepak Kumar Singh <deesin@codeaurora.org>