[Telemetry] Update doc about running on Android
[Telemetry] Update doc about running on Android

Clarify that Mac host is not supported, and the requirement for
rooted devices.

NoTry: True
Change-Id: I05ddbcac443d83f645fa9364c772ea2c6924a6af
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/2530415
Commit-Queue: John Chen <334fbfbb4df7c78f091ea1b77c69ca6ac731a3f3@chromium.org>
Reviewed-by: Wenbin Zhang <45ad8a1ff616a38a2202fd35571df81897c5f14f@google.com>

catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult