Vulkan: Fix clear texture for unrenderable internalformat Checking whether the texture is renderable or not depends on the output texture's format. If the output format is unrenderable, while format and type indicate the input format as renderable, the clear texture should still go into the unrenderable path. Bug: angleproject:385190304 Change-Id: I2963caad4996547a0aa27fcc37033ca95e2fa21e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6134267 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>