early console for pico-pi-imx7

sys/arch/evbarm/conf/GENERIC

@@ -1,5 +1,5 @@
 #
-#	$NetBSD: GENERIC,v 1.93 2021/01/31 08:47:07 skrll Exp $
+#	$NetBSD: GENERIC,v 1.94 2021/03/08 06:27:06 mlelstv Exp $
 #
 #	GENERIC ARM (aarch32) kernel
 #
@@ -63,6 +63,9 @@ options 	MSGBUFSIZE=32768
 
 #options 	EARLYCONS=imx, CONSADDR=0x02020000
 
+# PICO-PI-IMX7
+#options	EARLYCONS=imx, CONSADDR=0x30a70000 # serial4
+
 # ODROID-C1
 #options 	EARLYCONS=meson, CONSADDR=0xc81004c0