Update test Makefile.am
Update test Makefile.am

Pulled Scrypt PoW test from test array
murraycoin/murraycoin,Open-Source-Coins/mry,murraycoin/murraycoin,Open-Source-Coins/mry,Open-Source-Coins/mry,murraycoin/murraycoin,murraycoin/murraycoin,Open-Source-Coins/mry,Open-Source-Coins/mry,murraycoin/murraycoin