pvr: Add VK_KHR_get_memory_requirements2

pvr: Add VK_KHR_get_memory_requirements2

We already expose the *2() functions and allow the common vulkan code
to provide the vulkan 1.0 equivalents, so we might as well expose this
extension.

The runtime also provides common implementations for the *2() functions
based on VK_KHR_maintenance4, but those functions require the
requirements to be evaluated without creating a resource; that would
need significantly more refactoring work to achieve.

Coverage in dEQP is dEQP-VK.memory.requirements.extended.*, which all
pass or are unsupported.

Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Reviewed-by: Karmjit Mahil <Karmjit.Mahil@imgtec.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24489>