Shell: Grant CACHE_CONTENT to Shell

Required to test ContentResover#[get|put]Cache

Bug: 127711435
Test: atest CtsContentTestCases

(cherry picked from commit a31ed1bbdd45625036ac65bb41d2f1d462e14a04)

Merged-In: I5eb72772a0a35897611dd6db95c68a2d2e971e9a
Change-Id: I91a91a2969db175d88e9f41938869bc751f7b108
1 file changed