modules: rockchip: Add a module for rk808 PMIC

Now that the drivers are split we need one for RK3399-based board.

sys/modules/rockchip/Makefile

@@ -4,6 +4,7 @@
 SUBDIR = \
 	rk_i2c \
 	rk805 \
+	rk808 \
 	rk_dwmmc \
 	rk_spi
 

sys/modules/rockchip/rk808/Makefile

@@ -0,0 +1,21 @@
+# $FreeBSD$
+
+.PATH: ${SRCTOP}/sys/dev/iicbus/pmic/rockchip
+
+KMOD=	rk808
+SRCS=	rk8xx.c \
+	rk808.c \
+	rk8xx_clocks.c \
+	rk8xx_rtc.c \
+	rk8xx_regulators.c
+
+SRCS+=	\
+	bus_if.h \
+	device_if.h \
+	iicbus_if.h \
+	regnode_if.h \
+	regdev_if.h \
+	ofw_bus_if.h \
+	opt_platform.h \
+
+.include <bsd.kmod.mk>