rp2040: Fix extab section getting put before .text #235

Job	Run time
Build (ubuntu-latest)	25s
Build Examples (espressif/esp)	2m 10s
Build Website	26s
Build (windows-latest)	1m 34s
Dry Run Packaging	1m 54s
Build Examples (gigadevice/gd32)	2m 14s
Build (macos-latest)	41s
Build Examples (microchip/avr)	2m 16s
Check that stm32 generated code is up to date	37s
Build Examples (microchip/atsam)	2m 1s
Unit Test Ports (ubuntu-latest, gigadevice/gd32)	23s
Build Examples (nordic/nrf5x)	2m 0s
Unit Test Regz (ubuntu-latest)	18s
Unit Test Ports (ubuntu-latest, raspberrypi/rp2xxx)	21s
Build Examples (nxp/lpc)	2m 3s
Unit Test Regz (windows-latest)	2m 0s
Unit Test Ports (ubuntu-latest, stmicro/stm32)	26s
Unit Test UF2 (ubuntu-latest)	22s
Unit Test Regz (macos-latest)	48s
Build Examples (stmicro/stm32)	24s
Unit Test Ports (windows-latest, gigadevice/gd32)	1m 48s
Build Examples (raspberrypi/rp2xxx)	2m 39s
Unit Test UF2 (windows-latest)	1m 7s
Unit Test Ports (windows-latest, raspberrypi/rp2xxx)	1m 11s
Build Examples (wch/ch32v)	2m 11s
Unit Test UF2 (macos-latest)	32s
Unit Test Ports (windows-latest, stmicro/stm32)	1m 2s
Unit Test Ports (macos-latest, gigadevice/gd32)	27s
Unit Test Ports (macos-latest, raspberrypi/rp2xxx)	33s
Unit Test Ports (macos-latest, stmicro/stm32)	35s
	35m 28s

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