Without this change the package doesn't get properly reset when a new user starts.

[tomritzow]

Without this change the package doesn't get properly reset when a new user starts.

See for example in this excerpt:

 1 |    Package com.android.bluetooth:
 2 |      READ_CONTACTS (allow):
 3 |        null=[
 4 |          Access: [pers-s] 2022-04-22 13:24:17.577 (-277d5h22m53s447ms)
 5 |        ]
 6 |      WAKE_LOCK (allow):
 7 |        null=[
 8 |          Access: [pers-s] 2023-01-24 17:45:49.712 (-1m21s312ms) duration=+3ms
 9 |        ]
10 |      GET_USAGE_STATS (default):
11 |        null=[
12 |          Reject: [pers-s]2022-04-22 13:23:53.964 (-277d5h23m17s60ms)
13 |        ]
14 |      BLUETOOTH_CONNECT (allow):
15 |        null=[
16 |          Access: [pers-s] 2022-04-22 13:23:53.988 (-277d5h23m17s36ms)
17 |        ]
18 |  Uid 1027:
19 |    state=pers
20 |    capability=LCMN
21 |    appWidgetVisible=false
22 |      LEGACY_STORAGE: mode=ignore
23 |    Package com.android.nfc:
24 |      WAKE_LOCK (allow):
25 |        null=[
26 |          Access: [pers-s] 2022-04-22 13:23:54.633 (-277d5h23m16s391ms) duration=+1s73ms
27 |        ]

Here the package "com.android.bluetooth" is not reset when in line 18, so when "LEGACY_STORAGE:" in line 22 is encountered, it's added as another permission to "com.android.bluetooth" with "access" set to "ode=igno".

This PR fixes that by resetting the package whenever a new Uid is encountered.

Originally posted by @aticu in mvt-project/mvt#361