ath10k: add bus type for each layout of coredump

For some hw version, it has more than one bus type, it need to add bus
type to distinguish different chip.

Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00018-QCARMSWP-1.

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Patchwork-Id: 11158043
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>