misc: Run pre-commit run --all-files

This is reflect the updates made to black when running `pre-commit
autoupdate`.

Change-Id: Ifb7fea117f354c7f02f26926a5afdf7d67bc5919

src/dev/arm/FlashDevice.py

@@ -38,6 +38,7 @@ from m5.proxy import *
 
 from m5.objects.AbstractNVM import *
 
+
 # Distribution of the data.
 # sequential: sequential (address n+1 is likely to be on the same plane as n)
 # Random: @TODO Not yet implemented