Merge "Convert su/Android.mk to Android.bp" am: 237c76f411 am: 3f8fad391e am: 72db0340be

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1690960

Change-Id: I04c9b286a2c1da6f8f5ea0b392fba9903cb4db1e