add Linux::Cpuinfo to the ecosystem

Author: jonathanstowe

META.list

@@ -299,3 +299,4 @@ https://raw.githubusercontent.com/tony-o/perl6-overwatch/master/META.info
 https://raw.githubusercontent.com/cedric-vincent/kains/master/META.info
 https://raw.githubusercontent.com/zoffixznet/perl6-Pastebin-Shadowcat/master/META.info
 https://raw.githubusercontent.com/jonathanstowe/EventEmitter/master/META.info
+https://raw.githubusercontent.com/jonathanstowe/p6-Linux-Cpuinfo/master/META.info