ARM: dts: ste: Fix SPI controller node names

SPI controller nodes should be named 'spi' rather than 'ssp'. Fixing the
name enables dtc SPI bus checks.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-dbx5x0.dtsi

@@ -883,7 +883,7 @@ i2c@8012a000 {
 			power-domains = <&pm_domains DOMAIN_VAPE>;
 		};
 
-		ssp@80002000 {
+		spi@80002000 {
 			compatible = "arm,pl022", "arm,primecell";
 			reg = <0x80002000 0x1000>;
 			interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
@@ -897,7 +897,7 @@ ssp@80002000 {
 			power-domains = <&pm_domains DOMAIN_VAPE>;
 		};
 
-		ssp@80003000 {
+		spi@80003000 {
 			compatible = "arm,pl022", "arm,primecell";
 			reg = <0x80003000 0x1000>;
 			interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;

arch/arm/boot/dts/ste-hrefprev60.dtsi

@@ -57,7 +57,7 @@ tc3589x_gpio: tc3589x_gpio {
 			};
 		};
 
-		ssp@80002000 {
+		spi@80002000 {
 			/*
 			 * On the first generation boards, this SSP/SPI port was connected
 			 * to the AB8500.

arch/arm/boot/dts/ste-snowball.dts

@@ -377,7 +377,7 @@ i2c@80110000 {
 			pinctrl-1 = <&i2c3_sleep_mode>;
 		};
 
-		ssp@80002000 {
+		spi@80002000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&ssp0_snowball_mode>;
 		};

arch/arm/boot/dts/ste-u300.dts

@@ -442,7 +442,7 @@ mmcsd: mmcsd@c0001000 {
 			dma-names = "rx";
 		};
 
-		spi: ssp@c0006000 {
+		spi: spi@c0006000 {
 			compatible = "arm,pl022", "arm,primecell";
 			reg = <0xc0006000 0x1000>;
 			interrupt-parent = <&vica>;