This was originally disabled by a22ad99bdd ("pvr: set device
features/props/extensions to Vulkan 1.0 minimums (unless implemented)") in order
to concentrate efforts on passing "base" Vulkan conformance before layering on
additional functionality. The driver is now Vulkan 1.2 conformant.
As the functionality is already implemented, simply enable the extension.
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Ella Stanforth <ella@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41859>