defconfig: arm64: Enable SDCARD_FS for Lahaina

As of commit <2e72d893> (Merge android-5.4.24 (ce5de62e) into
msm-5.4) SDCARD_FS was disabled via gki_defconfig. Hence, re-enable
it in Lahaina's configurations for backward compatibility.

Change-Id: Ib71fbbc45c4564f6f3ffec8f318efd065c542820
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>