Run zipalign after classes.dex is removed from the apk

If LOCAL_DEX_PREOPT is enabled.

Change-Id: Ie2a706fbb77bc31c9fdb01c8435819c5de97ea28
We shouldn't use temporary variable in the build recipe.

Use $@ instead.

Change-Id: Ida0960a453b3701383a31f698c3163a297c4bce5
mkvendor.sh: force armeabi-v7a

Change-Id: I9f29eec73a13144b47ff7b1db1d59cb1e5a4ef64
mkvendor.sh: typo

Change-Id: I8cc2303fde7c815384e09f65b6d4a1116ac29ee4
mkvendor.sh: more fixes

Change-Id: I0c641d42a96e44bb9170475d5de21cb8644e4d3d