Set max number of allowed users for cuttlefish.

Bug: 119619197
Test: build and run
Change-Id: I51f757273390906f065f864bd5878f42ad591b4b
(cherry picked from commit 72bf5abe1f86e0c7762847657d4c7231e5ced715)
(cherry picked from commit a50743734028bf438953c600cd0af4412d270c72)
2 files changed