ART: Add arraycopy(byte) to unstarted runtime

The byte-array version is now in use in libcore.

Allows to compile-time initialize:
* java.security.cert.X509CertSelector
* sun.security.pkcs.PKCS9Attribute
* sun.security.provider.certpath.AdaptableX509CertSelector
* sun.security.x509.AccessDescription
* sun.security.x509.AlgorithmId
* sun.security.x509.ExtendedKeyUsageExtension
* sun.security.x509.NetscapeCertTypeExtension
* sun.security.x509.OIDMap
* sun.security.x509.PKIXExtensions

Bug: 27265238
Change-Id: If6b680a455809152c9bd7a679a8ab430936c46a1