mesa: upgrade 21.2.5 -> 21.3.0

New features:
VK_EXT_color_write_enable on lavapipe
GL_ARB_texture_filter_anisotropic in llvmpipe
Anisotropic texture filtering in lavapipe
VK_EXT_shader_atomic_float2 on Intel and RADV.
VK_EXT_vertex_input_dynamic_state on RADV.
VK_KHR_timeline_semaphore on lavapipe
VK_EXT_external_memory_host on lavapipe
GL_AMD_pinned_memory on llvmpipe
GL 4.5 compatibility on llvmpipe
VK_EXT_primitive_topology_list_restart on RADV and lavapipe.
ES 3.2 on zink
VK_KHR_depth_stencil_resolve on lavapipe
VK_KHR_shader_integer_dot_product on RADV.
OpenGL FP16 support on llvmpipe
VK_KHR_shader_float16_int8 on lavapipe
VK_KHR_spirv_1_4 on lavapipe
Experimental raytracing support on RADV
VK_KHR_synchronization2 on Intel
NGG shader based culling is now enabled by default on GFX10.3 on RADV.
VK_KHR_maintenance4 on RADV
VK_KHR_format_feature_flags2 on RADV.
EGL_EXT_present_opaque on wayland

(From OE-Core rev: 5b5d29650b7fc2183df5129ef7f7ba855699b57c)

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/mesa/mesa.inc

@@ -21,7 +21,7 @@ SRC_URI = "https://mesa.freedesktop.org/archive/mesa-${PV}.tar.xz \
            file://0001-futex.h-Define-__NR_futex-if-it-does-not-exist.patch \
            "
 
-SRC_URI[sha256sum] = "8e49585fb760d973723dab6435d0c86f7849b8305b1e6d99f475138d896bacbb"
+SRC_URI[sha256sum] = "a2753c09deef0ba14d35ae8a2ceff3fe5cd13698928c7bb62c2ec8736eb09ce1"
 
 UPSTREAM_CHECK_GITTAGREGEX = "mesa-(?P<pver>\d+(\.\d+)+)"