rp2350: Fix GlobalConfig for uart, rename func to match rp2040 #299

Job	Run time
Check that stm32 generated code is up to date	39s
Unit Test UF2 (windows-latest)	1m 46s
Unit Test Regz (windows-latest)	1m 10s
Unit Test Regz (macos-latest)	28s
Unit Test Regz (ubuntu-latest)	20s
Unit Test UF2 (ubuntu-latest)	18s
Unit Test UF2 (macos-latest)	41s
Build (macos-latest)	26s
Build (windows-latest)	56s
Build (ubuntu-latest)	27s
Build Website	23s
Unit Test Ports (ubuntu-latest, raspberrypi/rp2xxx)	18s
Dry Run Packaging	52s
Unit Test Ports (ubuntu-latest, gigadevice/gd32)	16s
Unit Test Ports (macos-latest, gigadevice/gd32)	26s
Build Examples (gigadevice/gd32)	2m 14s
Unit Test Ports (macos-latest, stmicro/stm32)	28s
Unit Test Ports (macos-latest, raspberrypi/rp2xxx)	23s
Unit Test Ports (windows-latest, gigadevice/gd32)	1m 26s
Unit Test Ports (windows-latest, stmicro/stm32)	1m 29s
Unit Test Ports (ubuntu-latest, stmicro/stm32)	16s
Build Examples (nxp/lpc)	2m 6s
Build Examples (espressif/esp)	2m 14s
Build Examples (nordic/nrf5x)	2m 5s
Unit Test Ports (windows-latest, raspberrypi/rp2xxx)	53s
Build Examples (stmicro/stm32)	26s
Build Examples (wch/ch32v)	2m 16s
Build Examples (microchip/atsam)	2m 9s
Build Examples (raspberrypi/rp2xxx)	2m 37s
Build Examples (microchip/avr)	2m 11s
	32m 39s

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