Currently, there is no check of:
1) Firmware event parameters in dbglog_parse_debug_logs(), which can
result in integer underflow.
2) Number of dbg log args against the total length, which can result in
buffer over-read.
To fix this, compare size of firmware event parameters and number of
dbg log args with total buffer length.
Change-Id: I7fbc684ec9e80cfc66220755a1ad6b9394194735
CRs-Fixed: 2197246
448e07a99e