[Keyboard] Added pistachio rev2 (#13248)

Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/pistachio/rev1/rev1.c

@@ -0,0 +1,18 @@
+/*
+Copyright 2020 rate
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "rev1.h"