Revert "init: Rename 'cgroups_activated' into 'fifo'"

Revert commit 9c61dad67e06a17d1ee44bbb931d412cd98a2212 in preparation of
introducing a second interprocess communication channel.

Bug: 213617178
Change-Id: I2959a3902a1b994cca2ac99855be1fc60d63bcbb
Signed-off-by: Bart Van Assche <bvanassche@google.com>
1 file changed