dts: edtlib: Shorten some license headers

One line instead of three.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>

scripts/dts/test-bindings/child.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Child binding
 description: Child binding

scripts/dts/test-bindings/clock-1-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Clock source with one cell
 description: Clock source with one cell

scripts/dts/test-bindings/clock-2-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Clock source with two cells
 description: Clock source with two cells

scripts/dts/test-bindings/fixed-clock.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Fixed clock
 description: Fixed clock

scripts/dts/test-bindings/gpio-1-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: GPIO controller with one cell
 description: GPIO controller with one cell

scripts/dts/test-bindings/gpio-2-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: GPIO controller with two cells
 description: GPIO controller with two cells

scripts/dts/test-bindings/grandchild.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Grandchild binding
 description: Grandchild binding

scripts/dts/test-bindings/interrupt-1-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Interrupt controller with one cell
 description: Interrupt controller with one cell

scripts/dts/test-bindings/interrupt-2-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Interrupt controller with two cells
 description: Interrupt controller with two cells

scripts/dts/test-bindings/interrupt-3-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Interrupt controller with three cells
 description: Interrupt controller with three cells

scripts/dts/test-bindings/parent.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Parent binding
 description: Parent binding

scripts/dts/test-bindings/props.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Device.props test
 description: Device.props test

scripts/dts/test-bindings/pwm-0-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: PWM source with zero cells
 description: PWM source with zero cells

scripts/dts/test-bindings/pwm-1-cell.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: PWM source with one cell
 description: PWM source with one cell

scripts/dts/test-bindings/sub-node-parent.yaml

@@ -1,6 +1,4 @@
-#
 # SPDX-License-Identifier: BSD-3-Clause
-#
 
 title: Sub-node test
 description: Sub-node test