sefcontext_compile: migrate to soong

Bug: 37512442
Test: build and boot Marlin.
Test: "bpfmt -w Android.bp"

(cherry-pick from commit 16e4a8dab34217517355385c4d11a329a1eaab87)

Change-Id: I0c7b31ad55a89b5d94b0b9a76eacdf5c99869561
Merged-In: Ib5a0aa8eb29457e3191bad12229a0a4171daa6b6
3 files changed