defconfig: msm: Enable kernel configs for vpn support

Enabling INET_IPCOMP and NET_KEY configs in msm_defconfig
(8952 64 bit) and msm8916_defconfig (8952 32 bit defconfig)
for supporting VPN in 8952

Change-Id: I00e400c2729fea2b7fa4a32ceeb509bc5287b638
CRs-Fixed: 855124
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>