screenrecord: Fix mediacodec selinux and seccomp policy denials am: 6d532aebe8 am: 440776f4b4

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/1551454

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I838b692f59cf595e4e275a4fca9d0a1a2db74654