[nrf fromtree] dts: arm: atmel: include pwm dt-bindings

Include the PWM dt-bindings by default, so that boards can use utilities
like PWM_MSEC() without extra includes. This is a common pattern done
for e.g. i2c or gpio.

Signed-off-by: Gerard Marull-Paretas <[email protected]>
(cherry picked from commit ca4ce6a)
Signed-off-by: Andrzej Głąbek <[email protected]>

Author: gmarull

dts/arm/atmel/samd2x.dtsi

@@ -8,6 +8,7 @@
 #include <arm/armv6-m.dtsi>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	aliases {

dts/arm/atmel/samd5x.dtsi

@@ -7,6 +7,7 @@
 #include <arm/armv7-m.dtsi>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	chosen {

dts/arm/atmel/same70.dtsi

@@ -8,6 +8,7 @@
 #include <arm/armv7-m.dtsi>
 #include <dt-bindings/i2c/i2c.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	aliases {