Set sepolicy for shell script of disabling contaminant detection

(ported from Ib2e3cf498851c0c9e5e74aacc9bf391549c0ad1a)

Bug: 244658328
Signed-off-by: Kyle Tso <kyletso@google.com>
Change-Id: Idbfa55d4c7091ce2861600ff3881fcc7217ec662
Merged-In: Idbfa55d4c7091ce2861600ff3881fcc7217ec662
2 files changed