configure/meson: Bump libdrm_amdgpu version requirement.

For the radv dependencies on syncobj signal/reset.

Reviewed-by: Dave Airlie <airlied@redhat.com>
diff --git a/meson.build b/meson.build
index 6e5ae4d..6ce6d55 100644
--- a/meson.build
+++ b/meson.build
@@ -947,7 +947,7 @@
 dep_libdrm_etnaviv = []
 dep_libdrm_freedreno = []
 if with_amd_vk or with_gallium_radeonsi
-  dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.88')
+  dep_libdrm_amdgpu = dependency('libdrm_amdgpu', version : '>= 2.4.89')
 endif
 if (with_gallium_radeonsi or with_dri_r100 or with_dri_r200 or
     with_gallium_r300 or with_gallium_r600)