zink: remove incorrect border-swizzle assumption
According to the Khronos issue, it seems like RADV is in the wrong, so let's turn the logic around here.
This makes us do the right thing for Lavapipe, and we should probablt just remove the whole block once !9731 (merged) lands.
Fixes: cdb9a477 ("zink: set PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK")
Edited by Erik Faye-Lund