defconfig: msm8916: Enable RmNet data feature on MSM8916

Enable RmNet data on MSM8916 in order to support MAP data
feature for data connectivity.

CRs-fixed: 660349
Change-Id: Ibd70ad2a4cb0348a83f33153a4f6baab881f5628
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>