Merge "Convert slideshow/Android.mk to Android.bp" am: 432d0dc79c am: 9bd0e1d274 am: f339ada82e

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1690234

Change-Id: I17fe51412cf7d9ad644cded1e16bee1cf5a062be