storaged: Fix-up private variable names in uid_monitor.

Bug: N/A
Test: storaged builds
Change-Id: Ifd21e25baa7b1c6ce41c5e0ec5247f47ba716e6e
Merged-In: Ifd21e25baa7b1c6ce41c5e0ec5247f47ba716e6e
3 files changed