cnss2: Overload QDSS trace save indication for generic mem dump

QDSS trace save QMI indication will be used by FW to dump any type
of host allocated DDR remote memory. Update QDSS trace save indication
handler for saving different memory types.

Change-Id: I0e78e2f6de367a500e78622e841e0cdf0f4170e5
Signed-off-by: Manikandan Mohan <manikand@codeaurora.org>