arm64: tegra: Fix Tegra194 HSP compatible string

The HSP instances on Tegra194 are not fully compatible with the version
found on Tegra186, so drop the fallback compatible string from the list.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra194.dtsi

@@ -1195,7 +1195,7 @@ cec@3960000 {
 		};
 
 		hsp_top0: hsp@3c00000 {
-			compatible = "nvidia,tegra194-hsp", "nvidia,tegra186-hsp";
+			compatible = "nvidia,tegra194-hsp";
 			reg = <0x03c00000 0xa0000>;
 			interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>,
 			             <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
@@ -1373,7 +1373,7 @@ p2u_hsio_11: phy@3f40000 {
 		};
 
 		hsp_aon: hsp@c150000 {
-			compatible = "nvidia,tegra194-hsp", "nvidia,tegra186-hsp";
+			compatible = "nvidia,tegra194-hsp";
 			reg = <0x0c150000 0x90000>;
 			interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>,
 			             <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>,