Merge "add libmodprobe api to query the number of modules loaded" am:...

Merge "add libmodprobe api to query the number of modules loaded" am: a990f076 am: 1b3d01fb am: eeaa5827

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1319047

Change-Id: I3125d2e1ef15a578bddeee551d0e64b9f0efa7a5