dt-bindings: at24: add bindings for Rohm BR24T01

Both manufacturer and name variant.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

Documentation/devicetree/bindings/eeprom/at24.txt

@@ -41,6 +41,7 @@ Required properties:
                 "nxp",
                 "ramtron",
                 "renesas",
+                "rohm",
                 "st",
 
                 Some vendors use different model names for chips which are just
@@ -48,6 +49,7 @@ Required properties:
 
                 "nxp,se97b" - the fallback is "atmel,24c02",
                 "renesas,r1ex24002" - the fallback is "atmel,24c02"
+                "rohm,br24t01" - the fallback is "atmel,24c01"
 
   - reg: The I2C address of the EEPROM.