vrend: add vrend_resource_needs_redblue_swizzle() to fix arcvm deqp

Fixes dEQP-EGL.functional.wide_color#window_888_colorspace_srgb on
ARCVM, which uses a 24 bit-per-pixel R8G8B8_UNORM surface format that
slipped through the cracks during the latest BGRA rework in
!725.

Fixes: 187e6513 ("vrend: avoid srgb views on eglimage-backed surfaces")

Signed-off-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Change-Id: I9553613278b2c7a99fd2898594221f52ff9ed643
Part-of: <!740>
29 jobs for !740 with fix-rgb888 in 22 minutes and 46 seconds (queued for 1 second)
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