diag: Add additional buffer for RIVA-APPS diag traffic.

DIAG forwarding uses two buffer to maintain traffic between peripheral
and APPS. Adding a second buffer for RIVA to improve performance.

Change-Id: I4bfa4739fca2bfa0cca72ec04fe351651d2ac241
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
3 files changed