net: cnss: add subsystem restart support for dual WiFi

Subsystem device add support for subsystem restart
recovery and ramdump device for cnss firmware dump
collection before the subsystem restart.

Refactor subsystem restart wrapper APIs to avoid the name
space collision in cnss platform driver compilation in dual
WiFi mode.

CRs-Fixed: 983677
Change-Id: Ib4a8d1a6d0ce8f1faa43ce0aa8312823b1ca3c15
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>