ARM: dts: imx6q-tbs2910: add SATA PHY configuration

Configure SATA PHY transmit level, boost, attenuation and equalizer
parameters for long wire connections. TBS2910 contains a standard SATA
connector, so devices are typically connected with (longer) SATA cables.
And explicitly configuring these parameters avoids complaints about
"not specified" values in boot messages.
Signed-off-by: Soeren Moch <smoch@web.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6q-tbs2910.dts

@@ -205,6 +205,10 @@ &pcie {
 };
 
 &sata {
+	fsl,transmit-level-mV = <1104>;
+	fsl,transmit-boost-mdB = <3330>;
+	fsl,transmit-atten-16ths = <16>;
+	fsl,receive-eq-mdB = <3000>;
 	status = "okay";
 };