Add RP2 PIO background read #15672

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10 errors

Build espressif_esp32s2_devkitc_1_n8r2 for en_US took 100.31s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for de_DE took 2.36s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for en_GB took 2.06s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for en_x_pirate took 2.16s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for es took 2.35s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for fil took 2.22s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for fr took 2.32s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for ID took 2.16s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for it_IT took 2.13s and failed

Build espressif_esp32s2_devkitc_1_n8r2 for ja took 2.09s and failed