ARM: dts: ls1021a: Specify TBIPA register address

The current (mildly evil) fsl_pq_mdio code uses an undocumented shadow of
the TBIPA register on LS1021A, which happens to be read-only.
Changing TBI PHY address therefore does not work on LS1021A.

The real (and documented) address of the TBIPA registere lies in the eTSEC
block and not in MDIO/MII, which is read/write, so using that fixes
the problem.

Signed-off-by: Esben Haabendal <eha@deif.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index c31dad9..728e206 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -587,7 +587,8 @@
 			device_type = "mdio";
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0x0 0x2d24000 0x0 0x4000>;
+			reg = <0x0 0x2d24000 0x0 0x4000>,
+			      <0x0 0x2d10030 0x0 0x4>;
 		};
 
 		ptp_clock@2d10e00 {