bootutil: fix swap with move reset issue #1597
Merged
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Fix a swap corruption which occurs on the swap move algorithm when a reset happens exactly at the point after the last move up, and its status update. On restart the image headers should be read at the 2nd sector of the primary slot, but due to lacking initialization it is read on the first sector, and then fails. This error was masked on the simulator because of the use of a global variable, which retained its value on a "reset simulation".
Fixes #1588