panfrost: Use a macro for checking for a shared bind type

panfrost: Use a macro for checking for a shared bind type

PAN_BIND_SHARED_MASK is all binding flags that mean that a resource
might be shared and accessible by other contexts.

Don't replace the usage of this pattern in panfrost_should_afbc and
panfrost_should_tile in case a new binding is introduced that not all
layouts can support.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16966>