This adds feature bits for all Winbond SPI flash parts to indicate so that spi_write_status_register() uses WREN instead of EWSR.<div><br></div><div>Signed-off-by: David Hendricks &lt;<a href="mailto:dhendrix@google.com">dhendrix@google.com</a>&gt;<br>

<div><br><div>-- <br>David Hendricks (dhendrix)<br>Systems Software Engineer, Google Inc.<br>
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