Add proper architecture flag for C33

Author: sebromero

library.properties

@@ -6,4 +6,4 @@ sentence=Arduino library for the PF1550 Power Management IC
 paragraph=This library allows the control and configuration of the PF1550 used on various Arduino boards.
 category=Device Control
 url=https://github.com/arduino-libraries/Arduino_PF1550
-architectures=mbed,mbed_nicla,mbed_portenta,renesas
+architectures=mbed,mbed_nicla,mbed_portenta,renesas,renesas_portenta