Add RP2 PIO background read #15672

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10 errors

Build unexpectedmaker_blizzard_s3 for en_US took 110.57s and failed

Build unexpectedmaker_blizzard_s3 for de_DE took 2.60s and failed

Build unexpectedmaker_blizzard_s3 for en_GB took 2.37s and failed

Build unexpectedmaker_blizzard_s3 for en_x_pirate took 2.45s and failed

Build unexpectedmaker_blizzard_s3 for es took 2.65s and failed

Build unexpectedmaker_blizzard_s3 for fil took 2.44s and failed

Build unexpectedmaker_blizzard_s3 for fr took 2.65s and failed

Build unexpectedmaker_blizzard_s3 for ID took 2.58s and failed

Build unexpectedmaker_blizzard_s3 for it_IT took 2.48s and failed

Build unexpectedmaker_blizzard_s3 for ja took 2.44s and failed