Fixes to write/erase failures observed on Winbond SPI flash W25Q128JV#4

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jcard0na wants to merge 3 commits intoChurrosoft:masterfrom

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Commits on Nov 30, 2023

Example code to test erase/write operations
Javier Cardona
committed
Do not exit write_enable until WEL bit is set
Javier Cardona
committed
Ensure wait_done waits for BUSY set and clear
Javier Cardona
committed