dt-bindings: PCI: qcom: Add ipq8064 rev 2 variant

Document qcom,pcie-ipq8064-v2 needed to use different phy_tx0_term_offset.
In ipq8064 phy_tx0_term_offset is 7. In ipq8064 v2 other SoC it's set to 0
by default.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ansuel Smith <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Stanimir Varbanov <[email protected]>

Author: Ansuel

Documentation/devicetree/bindings/pci/qcom,pcie.txt

@@ -5,6 +5,7 @@
 	Value type: <stringlist>
 	Definition: Value should contain
 			- "qcom,pcie-ipq8064" for ipq8064
+			- "qcom,pcie-ipq8064-v2" for ipq8064 rev 2 or ipq8065
 			- "qcom,pcie-apq8064" for apq8064
 			- "qcom,pcie-apq8084" for apq8084
 			- "qcom,pcie-msm8996" for msm8996 or apq8096