Add RP2 PIO background read #15672

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10 errors

Build lilygo_twatch_2020_v3 for en_US took 107.73s and failed

Build lilygo_twatch_2020_v3 for de_DE took 2.17s and failed

Build lilygo_twatch_2020_v3 for en_GB took 1.99s and failed

Build lilygo_twatch_2020_v3 for en_x_pirate took 2.01s and failed

Build lilygo_twatch_2020_v3 for es took 2.21s and failed

Build lilygo_twatch_2020_v3 for fil took 2.07s and failed

Build lilygo_twatch_2020_v3 for fr took 2.24s and failed

Build lilygo_twatch_2020_v3 for ID took 2.07s and failed

Build lilygo_twatch_2020_v3 for it_IT took 2.03s and failed

Build lilygo_twatch_2020_v3 for ja took 2.10s and failed