This adds a conditional build guard to enable a smooth move of the
dumpkey tool to the bootable/recovery project without breaking the
build during the transition period.
BUG:27326256
Change-Id: Ia23b31bb559a668273b5c0548b7bd1797049a224
This adds a small EC library that is capable of verifying a signature of
SHA256 with ECDSA on the NIST P-256 curve.
Change-Id: I2a16639c92a77e8e4783c47ffbc56676de56eb59