Allow disk read for VisualQueryDetectionService

Allow isolated process to read the files from applications internal storage via read-only mmap channel.

Bug: 289185455
Test: Manual && atest CtsVoiceInteractionTestCases
Change-Id: I47538463be549e693882bccbf91264341ce91754
Merged-In: I47538463be549e693882bccbf91264341ce91754
10 files changed