gnu: mesa: Update to 25.2.0.

Note: this is not the first "stable" release, but making this available for
testing as some configuration we used have been dropped upstream.

* gnu/packages/gl.scm (mesa): Update to 25.2.0.
[arguments]<#:meson>: Use meson-1.8.
<#:configure-flags>: Remove osmesa and gallium-xa flags (no longer available).
* gnu/packages/rust-crates.scm (mesa-cargo-inputs): Add rustc-hash.

Change-Id: I36d59582b5d827f78040a248a54fd11e2f982393

gnu/packages/gl.scm

@@ -314,7 +314,7 @@ also known as DXTn or DXTC) for Mesa.")
 (define-public mesa
   (package
     (name "mesa")
-    (version "25.1.6")
+    (version "25.2.0")
     (source
      (origin
        (method url-fetch)
@@ -324,7 +324,7 @@ also known as DXTn or DXTC) for Mesa.")
                                  "mesa-" version ".tar.xz")))
        (sha256
         (base32
-         "116f712h9nwdmjxph9x3idqd7h70lgfqz1m961yp3n6j77mnjawz"))))
+         "0kwdpl87v4damasg3rvw9453qbs286vkimjks8qlvlblq0hnnwkw"))))
     (build-system meson-build-system)
     (propagated-inputs
      ;; The following are in the Requires.private field of gl.pc.
@@ -384,6 +384,7 @@ also known as DXTn or DXTC) for Mesa.")
     (outputs '("out" "bin"))
     (arguments
      (list
+      #:meson meson-1.8
       #:configure-flags
       #~(list
          #$@(cond
@@ -406,8 +407,6 @@ panfrost,r300,r600,svga,softpipe,llvmpipe,tegra,v3d,vc4,virgl,zink"))
          "-Dglx=dri"               ;Thread Local Storage, improves performance
          ;; "-Dopencl=true"
          ;; "-Domx=true"
-         "-Dosmesa=true"
-         "-Dgallium-xa=enabled"
 
          ;; features required by wayland
          "-Dgles2=enabled"