Remove -sha256 flag when calling bssl_inject_hash. am: c54158d3c7 am: 01c3c0ade4

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/18675166

Change-Id: I83f90c536f1f5feeeb5dc0e73e5d4c53db2e0f70
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>