mmc: dwmmc: Match on "rockchip,rk3288-dw-mshc" compatible

This is the common denominator for rockchip compatible from RK3288 to RK3399.
The other compatible are generally present in the DTS but the controllers
are the same.

MFC after:	1 week

sys/dev/mmc/host/dwmmc_rockchip.c

@@ -49,12 +49,12 @@ __FBSDID("$FreeBSD$");
 
 enum RKTYPE {
 	RK2928 = 1,
-	RK3328,
+	RK3288,
 };
 
 static struct ofw_compat_data compat_data[] = {
 	{"rockchip,rk2928-dw-mshc",	RK2928},
-	{"rockchip,rk3328-dw-mshc",	RK3328},
+	{"rockchip,rk3288-dw-mshc",	RK3288},
 	{NULL,				0},
 };