RDKB-42755,TCXB7-4601: Observed continuous "CcspPandMSsp" crash
RDKB-42755,TCXB7-4601: Observed continuous "CcspPandMSsp" crash

Reason for change: Adding error checks to avoid PAM crash
Test Procedure: Enusre PAM is not crashing with handle_MocaIpv6
Risks: None
Signed-off-by: ArathyVikram_Nair@comcast.com

(cherry picked from commit 6413943d2875194a7c41094d14378f1e9147feea)
(cherry picked from commit fcb3afea9334249fbb00f21881677c75caf15be5)
Change-Id: Icd3572181809a5cff4333afd4175b4fa47592d2b

rdkcmf/rdkb-CcspPandM,rdkcmf/rdkb-CcspPandM,rdkcmf/rdkb-CcspPandM