dt-bindings: pwm: renesas-tpu: Document r8a774[35] support

Document r8a774[35] specific compatible strings. No driver change is
needed as the fallback compatible string "renesas,tpu" activates the
right code in the driver.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.txt

@@ -5,8 +5,10 @@ Required Properties:
   - compatible: should be one of the following.
     - "renesas,tpu-r8a73a4": for R8A77A4 (R-Mobile APE6) compatible PWM controller.
     - "renesas,tpu-r8a7740": for R8A7740 (R-Mobile A1) compatible PWM controller.
+    - "renesas,tpu-r8a7743": for R8A7743 (RZ/G1M) compatible PWM controller.
+    - "renesas,tpu-r8a7745": for R8A7745 (RZ/G1E) compatible PWM controller.
     - "renesas,tpu-r8a7790": for R8A7790 (R-Car H2) compatible PWM controller.
-    - "renesas,tpu": for generic R-Car TPU PWM controller.
+    - "renesas,tpu": for generic R-Car and RZ/G1 TPU PWM controller.
 
   - reg: Base address and length of each memory resource used by the PWM
     controller hardware module.