mesalib: Update version from 20.1.7 to 21.1.5

The LLVM/clang update requires a rebuilt of Mesa, so take this chance to
update Mesa to the latest release 21.1.5 ([release
notes](https://docs.mesa3d.org/relnotes.html)).

mesalib.be0

@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION mesalib-20.1.7-0
+# BEE_VERSION mesalib-21.1.5-0
 
 ## this file was created by bee init and should be executed to build a
 ## bee-package. (Additional hints are located at the end of this file.)
@@ -15,7 +15,7 @@ SRCURL[0]="https://mesa.freedesktop.org/archive/mesa-${PKGVERSION}.tar.xz"
 ## Add URLs/pathes to patch files to the PATCHURL array.
 ## The sources will be patched in the order of the array.
 
-PATCHURL+=(/src/mariux/patches/0001-swr-Fix-crashes-on-non-AVX-hardware.patch)
+# PATCHURL+=()
 
 ###############################################################################
 ## Add filename patterns to the EXCLUDE array of files that should not
@@ -58,7 +58,7 @@ mee_configure() {
         -Dbuildtype=release \
         -Dgallium-drivers="nouveau,r600,radeonsi,svga,swrast,swr" \
         -Dvulkan-drivers="amd,intel" \
-        -Dosmesa=gallium \
+        -Dosmesa=true \
         -Dvalgrind=false \
         -Dglvnd=true
 }