[nrf fromlist] tests: boards: nrf: qdec: Add nRF54L20pdk to platform_…#2665

PerMac merged 1 commit intonrfconnect:mainnrfconnect/sdk-zephyr:mainfrom

nordic-segl:NRFX-6832_Enable-qdec-test-on-nrf54l20pdknordic-segl/sdk-zephyr:NRFX-6832_Enable-qdec-test-on-nrf54l20pdkCopy head branch name to clipboard