devicetrees: Remove trailing backslash from multiline values

It's not needed to put a backslash at the end of a line for quoted
multiline values. Thus, remove it.

Change-Id: I1b83d53598ba2adeed853a96d6c2c1a21f01a9f7
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78576
Reviewed-by: Erik van den Bogaert <ebogaert@eltan.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/mainboard/intel/saddlebrook/devicetree.cb b/src/mainboard/intel/saddlebrook/devicetree.cb
index fcd99ac..c344819 100644
--- a/src/mainboard/intel/saddlebrook/devicetree.cb
+++ b/src/mainboard/intel/saddlebrook/devicetree.cb
@@ -157,28 +157,28 @@
 	# Must leave UART0 enabled or SD/eMMC will not work as PCI
 
 	register "SataSalpSupport" = "1"
-	register "SataPortsEnable" = "{ \
-		[0]	= 1, \
-		[1]	= 1, \
-		[2]	= 1, \
-		[3]	= 1, \
-		[4]	= 1, \
-		[5]	= 1, \
-		[6]	= 1, \
-		[7]	= 1, \
+	register "SataPortsEnable" = "{
+		[0] = 1,
+		[1] = 1,
+		[2] = 1,
+		[3] = 1,
+		[4] = 1,
+		[5] = 1,
+		[6] = 1,
+		[7] = 1,
 	}"
-	register "SerialIoDevMode" = "{ \
-		[PchSerialIoIndexI2C0]	= PchSerialIoPci, \
-		[PchSerialIoIndexI2C1]	= PchSerialIoPci, \
-		[PchSerialIoIndexI2C2]	= PchSerialIoPci, \
-		[PchSerialIoIndexI2C3]	= PchSerialIoPci, \
-		[PchSerialIoIndexI2C4]	= PchSerialIoPci, \
-		[PchSerialIoIndexI2C5]	= PchSerialIoPci, \
-		[PchSerialIoIndexSpi0]	= PchSerialIoPci, \
-		[PchSerialIoIndexSpi1]	= PchSerialIoPci, \
-		[PchSerialIoIndexUart0]	= PchSerialIoPci, \
-		[PchSerialIoIndexUart1]	= PchSerialIoPci, \
-		[PchSerialIoIndexUart2]	= PchSerialIoSkipInit, \
+	register "SerialIoDevMode" = "{
+		[PchSerialIoIndexI2C0]	= PchSerialIoPci,
+		[PchSerialIoIndexI2C1]	= PchSerialIoPci,
+		[PchSerialIoIndexI2C2]	= PchSerialIoPci,
+		[PchSerialIoIndexI2C3]	= PchSerialIoPci,
+		[PchSerialIoIndexI2C4]	= PchSerialIoPci,
+		[PchSerialIoIndexI2C5]	= PchSerialIoPci,
+		[PchSerialIoIndexSpi0]	= PchSerialIoPci,
+		[PchSerialIoIndexSpi1]	= PchSerialIoPci,
+		[PchSerialIoIndexUart0]	= PchSerialIoPci,
+		[PchSerialIoIndexUart1]	= PchSerialIoPci,
+		[PchSerialIoIndexUart2]	= PchSerialIoSkipInit,
 	}"
 
 	# PL2 override 25W