Merge pull request #337 from adafruit/support-itsybitsy-dotstar #541

Job	Run time
set-matrix	3s
build (adm_b_nrf52840_1)	39s
build (ae_bl652_bo)	49s
build (aramcon2_badge)	56s
build (aramcon_badge_2019)	46s
build (arcade_feather_nrf52840_express)	41s
build (arduino_nano_33_ble)	41s
build (bast_ble)	56s
build (bluemicro_nrf52833)	55s
build (bluemicro_nrf52840)	48s
build (challenger_840_ble)	43s
build (circuitplayground_nrf52840)	42s
build (clue_nrf52840)	53s
build (ebyte_e104_bt5032a)	51s
build (ebyte_e73_tbb)	48s
build (electronut_labs_papyr)	45s
build (feather_nrf52832)	53s
build (feather_nrf52833_express)	39s
build (feather_nrf52840_express)	50s
build (feather_nrf52840_sense)	57s
build (feather_nrf52840_sense_tft)	52s
build (ikigaisense_vita)	46s
build (itsybitsy_nrf52840_express)	42s
build (ledglasses_nrf52840)	39s
build (m60_keyboard)	42s
build (mdk_nrf52840_dongle)	39s
build (metro_nrf52840_express)	1m 0s
build (mikoto)	50s
build (nRF52840_connect_kit)	42s
build (nice_nano)	42s
build (nrf52840_bboard)	43s
build (nrf52840_m2)	37s
build (ohs2020_badge)	37s
build (particle_argon)	57s
build (particle_boron)	42s
build (particle_xenon)	49s
build (pca10056)	39s
build (pca10059)	41s
build (pca10100)	50s
build (pillbug)	41s
build (pitaya_go)	53s
build (raytac_mdbt50q_db_40)	52s
build (raytac_mdbt50q_rx)	38s
build (sparkfun_nrf52840_micromod)	39s
build (t1000_e)	39s
build (waveshare_nrf52840_eval)	37s
build (xiao_nrf52840_ble)	40s
build (xiao_nrf52840_ble_sense)	39s
	35m 42s

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