update defconfig & build script
Revert "zram: update zram to Linux 3.11.4"

This reverts commit 4e9866416a352424acc5aefe3b149751b5541693.
zram: sync with google's https://www.codeaurora.org/cgit/external/gigabyte/kernel/msm/log/?h=caf/aosp-common/android-3.4