cnss2: Dump QDSS registers to restore ETR logs after RDDM

Certain QDSS registers are needed for tools to restore firmware
ETR logs after firmware asserts and enters RDDM mode. Dump these
registers into a buffer so that they can be extracted from system
dump.

Change-Id: I40fa1bb3669ddc7a7cc9c0aa845e2636ab43c1f5
Signed-off-by: Yue Ma <yuem@codeaurora.org>
2 files changed