[bsp][pico] add rtduino #51

Job	Run time
others_at32_hc32	4m 55s
stm32l4_f0_f1	4m 37s
stm32_f2_f4	4m 0s
stm32_f7_g0_h7_mp15_u5_h5_wb5	4m 29s
nxp_renesas	5m 23s
gd32_n32_apm32	4m 44s
nordic_Infineon_TI_microchip	6m 4s
mips	2m 43s
aarch64	5m 55s
riscv-none	3m 38s
riscv64-unknown	3m 50s
llvm-arm	3m 19s
simulator	4m 4s
ESP32C3	4m 49s
i386-unknown	4m 2s
	1h 6m 32s

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