We were generating GL_INVALID_OPERATION when a non-compressed format
is used where a compressed one is expected or a compressed one is used
where a non-compressed one is expected. Instead we can generate
GL_INVALID_ENUM since these enums are never valid for these calls
(GL_INVALID_OPERATION is for when the enum is valid in some situations
but it's currently used incorrectly).

Change-Id: I9ee92a92cda0574284e709a5a745d5bb8b825a31
Reviewed-on: https://swiftshader-review.googlesource.com/16888Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>