arm64: dts: rockchip: rk3328: fix usb2phy node name

Fix u-boot error:
Call trace:
 PC:	[< 00235a50 >]  regmap_write+0x4/0x18      drivers/core/regmap.c:142
 LR:	[< 00239704 >]  rk3328_usb2phy_tuning+0x28/0x6c      drivers/phy/phy-rockchip-inno-usb2.c:847

Stack:
       [< 00235a50 >]  regmap_write+0x4/0x18
       [< 00239b24 >]  rockchip_usb2phy_probe+0x234/0x238
       [< 00233b00 >]  device_probe+0x214/0x274
       [< 00234bd4 >]  uclass_get_device_tail+0x1c/0x40
       [< 00234c5c >]  uclass_get_device_by_name+0x2c/0x38
       [< 0023a090 >]  otg_phy_init+0x28/0x144
       [< 0026aa20 >]  usb_gadget_register_driver+0x7c/0xa4
       [< 0026c66c >]  usb_composite_register+0x50/0x74
       [< 0026c9f4 >]  g_dnl_register+0x1c/0x4c
       [< 0020ec00 >]  do_rkusb+0x29c/0x4e0
       [< 0022baf4 >]  cmd_process+0xdc/0x10c
       [< 00214aa4 >]  run_list_real+0x6e4/0x728
       [< 00214c58 >]  parse_stream_outer+0x170/0x66c
       [< 002143a8 >]  parse_string_outer+0xcc/0xe4
       [< 0021495c >]  run_list_real+0x59c/0x728
       [< 00214c58 >]  parse_stream_outer+0x170/0x66c
       [< 0021436c >]  parse_string_outer+0x90/0xe4
       [< 00209d34 >]  do_download+0x24/0x50
       [< 0022baf4 >]  cmd_process+0xdc/0x10c
       [< 00214aa4 >]  run_list_real+0x6e4/0x728
       [< 00214c58 >]  parse_stream_outer+0x170/0x66c
       [< 0021436c >]  parse_string_outer+0x90/0xe4
       [< 00202888 >]  setup_boot_mode+0xc8/0xf0
       [< 0020350c >]  board_late_init+0x1e4/0x424
       [< 00282c0c >]  initcall_run_list+0x58/0x94
       [< 00215b84 >]  board_init_r+0x20/0x24
       [< 00201940 >]  relocation_return+0x4/0x0

Change-Id: I1c931f385548eaa8ba11407a23a7d0c31bb1464b
Signed-off-by: Jianlong Wang <jianlong.wang@rock-chips.com>

arch/arm64/boot/dts/rockchip/rk3328.dtsi

@@ -1337,7 +1337,7 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		u2phy: usb2phy@100 {
+		u2phy: usb2-phy@100 {
 			compatible = "rockchip,rk3328-usb2phy";
 			reg = <0x100 0x10>;
 			clocks = <&xin24m>;