casio/pv1000.cpp: fix border color #12515
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angelosa
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angelosa
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Research I did a year ago established that Casio's PV-1000 border colors red and blue bits are reversed.
See https://forums.nesdev.org/viewtopic.php?p=288421#p288421
People on the discord agreed that swapping the palette definition and tiles interpretation structure was cleaner than explicitly bit-reversing the value received during the I/O port writes