arm: a37xx: pci: Fix DT compatible string to Linux' DT compatible

Change DT compatible string for A3700 PCIe from 'marvell,armada-37xx-pcie'
to 'marvell,armada-3700-pcie' to make U-Boot A3700 PCIe DT node compatible
with Linux' DT node.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/dts/armada-37xx.dtsi b/arch/arm/dts/armada-37xx.dtsi
index a1052ad..b7d325b 100644
--- a/arch/arm/dts/armada-37xx.dtsi
+++ b/arch/arm/dts/armada-37xx.dtsi
@@ -323,7 +323,7 @@
 		};
 
 		pcie0: pcie@d0070000 {
-			compatible = "marvell,armada-37xx-pcie";
+			compatible = "marvell,armada-3700-pcie";
 			reg = <0 0xd0070000 0 0x20000>;
 			#address-cells = <3>;
 			#size-cells = <2>;