wcnss: add proper macro value check to avoid unnecessary delay

wcnss_service is sends value zero to platform driver, to indicate cal data
is not present, but platform driver checking received value with macro
value -1, because of improper macro value check unnecessary delay is added.
To mitigate issue add proper macro value check and avoid the
unnecessary delay.

Change-Id: I8ff55c7e95c8b556063928d22940a16bee60e931
CRs-Fixed: 779421
Signed-off-by: Anand N Sunkad <asunka@codeaurora.org>