msm: ipa3: Fix to validate the NAT table entries during NAT table init

During NAT table Initialization parameter pass from HLOS, if max/zero 
table entries passed it was leading to out of bound read. Adding checks 
to validate the table entries before passing to NAT table parameter.

Change-Id: I85ae3272e6c72eefd241c3b26f3bfc02a636fd75
Signed-off-by: Himansu Nayak <quic_himansu@quicinc.com>