ipq806x: fix pcie tx termination offset

According to GPL tarballs and QSDK related branch tx termination
offset for ipq8064 SoC version >= 2.0 should be equal to 0 and
not 7.

https://github.com/paul-chambers/netgear-r7800/blob/master/git_home/linux.git/sourcecode/arch/arm/mach-msm/board-ipq806x.c#L1682-L1685

Fix this.

Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>
[slh: rebase for kernel v4.14 as well]
Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>

target/linux/ipq806x/files-4.14/arch/arm/boot/dts/qcom-ipq8064-v2.0.dtsi

@@ -14,5 +14,17 @@
 			tx_deamp_3_5db = <32>;
 			mpll = <0xa0>;
 		};
+
+		pcie0: pci@1b500000 {
+			phy-tx0-term-offset = <0>;
+		};
+
+		pcie1: pci@1b700000 {
+			phy-tx0-term-offset = <0>;
+		};
+
+		pcie2: pci@1b900000 {
+			phy-tx0-term-offset = <0>;
+		};
 	};
 };

target/linux/ipq806x/files-4.9/arch/arm/boot/dts/qcom-ipq8064-v2.0.dtsi

@@ -14,5 +14,17 @@
 			tx_deamp_3_5db = <32>;
 			mpll = <0xa0>;
 		};
+
+		pcie0: pci@1b500000 {
+			phy-tx0-term-offset = <0>;
+		};
+
+		pcie1: pci@1b700000 {
+			phy-tx0-term-offset = <0>;
+		};
+
+		pcie2: pci@1b900000 {
+			phy-tx0-term-offset = <0>;
+		};
 	};
 };