defconfig: msm8937: Enable missing network options

Android Kernel Net Testing requires additional configuration options
to work properly. Enable the following:
        SYN_COOKIES
	INET_UDP_DIAG
	IP_SCTP
	INET_SCTP_DIAG

Change-Id: I9d8b35ef25eef7ee9fe6a99e16c43da9d025cf16
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
Signed-off-by: Chinmay Agarwal <chinagar@codeaurora.org>