Add RP2 PIO background read #15659

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10 errors

Build unexpectedmaker_omgs3 for en_US took 112.48s and failed

Build unexpectedmaker_omgs3 for de_DE took 2.41s and failed

Build unexpectedmaker_omgs3 for en_GB took 2.22s and failed

Build unexpectedmaker_omgs3 for en_x_pirate took 2.20s and failed

Build unexpectedmaker_omgs3 for es took 2.52s and failed

Build unexpectedmaker_omgs3 for fil took 2.29s and failed

Build unexpectedmaker_omgs3 for fr took 2.44s and failed

Build unexpectedmaker_omgs3 for ID took 2.27s and failed

Build unexpectedmaker_omgs3 for it_IT took 2.32s and failed

Build unexpectedmaker_omgs3 for ja took 2.22s and failed