meson: require amdgpu >= 2.4.91

the meson equivalent of f8773edb0a0cf5ff885cd3494717323983eedeed

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
diff --git a/meson.build b/meson.build
index 51b4702..e21ac74 100644
--- a/meson.build
+++ b/meson.build
@@ -1036,7 +1036,7 @@
 dep_libdrm_etnaviv = []
 dep_libdrm_freedreno = []
 if with_amd_vk or with_gallium_radeonsi
-  dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.90')
+  dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.91')
 endif
 if (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
     with_gallium_r300 or with_gallium_r600)