interfaces/apparmor: allow reading of /proc/self/smaps_rollup

Allow read of /proc/self/smaps_rollup.

Related: SNAPDENG-37261, LP#2110510

Signed-off-by: Maciej Borzecki <maciej.borzecki@canonical.com>

Author: bboozzoo

interfaces/apparmor/template.go

@@ -279,6 +279,7 @@ var templateCommon = `
   owner @{PROC}/@{pid}/loginuid r,
   owner @{PROC}/@{pid}/sessionid r,
   @{PROC}/@{pid}/smaps r,
+  @{PROC}/@{pid}/smaps_rollup r,
   @{PROC}/@{pid}/stat r,
   @{PROC}/@{pid}/statm r,
   @{PROC}/@{pid}/status r,