Respect palette map for sprite colorkey

[ghost]

Fixes both spr() and map()

Test with

function TIC()
	poke4(2 * 0x03ff0 + 8, 14)
	cls(9)
	spr(1, 0,0, 14, 3,0,0, 2,2)
end

[nesbox]

thank you for the fix
methought I saw an opened issue but can't find it