Vulkan: Fix color attachment limit with framebuffer fetch ANGLE incorreclty assumed that the input descriptor limit is at least as big as the color attachment limit. This is not true on Intel/windows where 8 color attachments are available but only 7 input descriptors. With this change, the color attachment limit is dropped to 7 in such a case so that framebuffer fetch can continue to be supported. Bug: angleproject:372873263 Change-Id: If836563b47399a23b293b74815f6bccb21aaf47c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5919759 Reviewed-by: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Yuxin Hu <yuxinhu@google.com> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>