defconfig: arm64: msm8994: Enable xfrm statistics

Enable xfrm statistics to view information about tranformation
errors during packet processing

Change-Id: I60c07a7befd150e76a278fd8723e45efadbc8f23
Acked-by: Nagarjuna Chaganti <nchagant@qti.qualcomm.com>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>