i965: Complete 'expose RGBA visuals only on Android'

i965: Complete 'expose RGBA visuals only on Android'

Commit 731ba6924a2ed6cdf47a78fd637a91a19ddcf9ed
"expose RGBA visuals only on Android" replaced
ARRAY_SIZE(formats) by num_formats, but there are
3 loops which add configs, and only one was updated
to num_formats.

Also update loops for configs with accumulation buffer
and multisample configs.

Fixes: 731ba6924a2 "i965: expose RGBA visuals only on Android"
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>