Merge "Collect the hostname of the machine as a metric." am: 585d7d4c am:...

Merge "Collect the hostname of the machine as a metric." am: 585d7d4c am: e3d0a6f1 am: 00e49ca8

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1457384

Change-Id: I39c7ba6f9c4ccb5314883548b9531ecf83438b2b