spi: Allow to define a quad-enable (QE) configuration bit

Change-Id: Ia6c927aeaab8de6e81313e285351ba14b3c6aa25
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/111
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/include/flash.h b/include/flash.h
index b886f45..0b34184 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -345,6 +345,9 @@
 		/* Write Protect Selection (per sector protection when set) */
 		struct reg_bit_info wps;
 
+		/* Quad Enable bit (QE) */
+		struct reg_bit_info qe;
+
 		/*
 		 * Dummy cycles config (DC)
 		 *