All ANGLE volk changes have been upstreamed to volk repo so rolling
volk to sync with latest.
Going forward we can just roll when/if we need newer versions of Vulkan
Header supported by volk.

Bug: angleproject:4225
Change-Id: I6132a94010bbc5f3356ebb0b7e2b2b661ecc68b2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1991722Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Tobin Ehlis <tobine@google.com>