arm: dts: socfpga: Fix SPI aliases

The SPI aliases are completely wrong. First, they point to non-existing
/spi@.* nodes instead of the correct /soc/spi@.* nodes. Second, the use
ad-hoc string instead of a handle. Furthermore, they are copied multiple
times in each board DTS.

So fix it such that we move these into socfpga.dtsi and make them use
the usual handles.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>

arch/arm/dts/socfpga.dtsi

@@ -20,6 +20,9 @@
 		timer1 = &timer1;
 		timer2 = &timer2;
 		timer3 = &timer3;
+		spi0 = &qspi;
+		spi1 = &spi0;
+		spi2 = &spi1;
 	};
 
 	cpus {

arch/arm/dts/socfpga_arria5_socdk.dts

@@ -22,13 +22,9 @@
 
 	aliases {
 		/* this allow the ethaddr uboot environmnet variable contents
-		* to be added to the gmac1 device tree blob.
-		*/
+		 * to be added to the gmac1 device tree blob.
+		 */
 		ethernet0 = &gmac1;
-
-		spi0 = "/spi@ff705000";		/* QSPI */
-		spi1 = "/spi@fff00000";
-		spi2 = "/spi@fff01000";
 	};
 
 	regulator_3_3v: 3-3-v-regulator {

arch/arm/dts/socfpga_cyclone5_socdk.dts

@@ -25,10 +25,6 @@
 		 * to be added to the gmac1 device tree blob.
 		 */
 		ethernet0 = &gmac1;
-
-		spi0 = "/spi@ff705000";		/* QSPI */
-		spi1 = "/spi@fff00000";
-		spi2 = "/spi@fff01000";
 	};
 
 	regulator_3_3v: 3-3-v-regulator {

arch/arm/dts/socfpga_cyclone5_socrates.dts

@@ -14,12 +14,6 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
- 	aliases {
-		spi0 = "/spi@ff705000";		/* QSPI */
-		spi1 = "/spi@fff00000";
-		spi2 = "/spi@fff01000";
- 	};
-
 	memory {
 		name = "memory";
 		device_type = "memory";