local_manifests: Add zl1

<?xml version="1.0" encoding="UTF-8"?>

<manifest>

  <project name="LineageOS/android_device_leeco_zl1" path="device/leeco/zl1" remote="github" />

  <project name="LineageOS/android_device_leeco_msm8996-common" path="device/leeco/msm8996-common" remote="github" />

  <project name="LineageOS/android_kernel_leeco_msm8996" path="kernel/leeco/msm8996" remote="github" />

</manifest>