icnss2: Avoid race between SOC wake requests

Add check for ref count inside work that if SOC wake
request is already sent, increment ref count and return
without actually sending request to FW.

Change-Id: Ia70e1699001c885b2a76b173ca1106f5555d55ea
Signed-off-by: Naman Padhiar <npadhiar@codeaurora.org>