boards: nordic: nrf54l20pdk: Increase RAM, Flash on FLPR#20988

nordic-segl wants to merge 1 commit intonrfconnect:mainnrfconnect/sdk-nrf:mainfrom

nordic-segl:NRFX-7216_Increase-RAM-Flash-on-nRF54L20-FLPRnordic-segl/sdk-nrf:NRFX-7216_Increase-RAM-Flash-on-nRF54L20-FLPRCopy head branch name to clipboard