Our format caps table was incorrectly reporting GL_DEPTH_COMPONENT32_OES
supported as a texture or texture attachment if OES_depth32 extension is
supported. However, the OES_depth32 extension spec says:

This extension enables 32-bit depth components as a valid render buffer
storage format.

So texture and texture attachment should not be reported as supported if
OES_depth32 is available but neither GL_ANGLE_depth_texture or
GL_OES_depth_texture are supported, which is currently the case for
swiftshader.

Bug: angleproject:3952
Change-Id: Ia29853229de9ff0918d6752631edfccf5f2ba3f8
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1874007Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Commit-Queue: Tobin Ehlis <tobine@google.com>