qcom: memory_dump: add support for qca6290 wlan dump

qca6290's dump is spilt into several small segments due to
memory limitations. When register to msm dump framework,
a two-level lookup table is provided instead of the physical
address of a large dump. Define a new dump data type for qca6290
wlan dump, which is used to identify it from other wlan dump data.

CRs-Fixed: 2001251
Change-Id: Ifef45d5222faac6cef51ca8cb55d268830f4042d
Signed-off-by: Yuanyuan Liu <yuanliu@codeaurora.org>