nxboot/loader: Fix boot progress calculation. #3145
Merged
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Summary
This patch corrects a mathematical error in the progress reporting function which caused incorrect percentage progress calculations.
This problem was discovered while testing #3136.
Impact
None. Just fixes a problem where the reported % went negative and then misbehaved. Schoolboy maths error!
Testing
On my custom SAMA5D27C-D1G board using NXboot and an 800x480 nLCD with NXboot progress display enabled to view the percentage complete of various NXboot flash operations.