anv: Add idep_genxml to dependencies of grl_genX_libs

Fix race condition when building ANV:

    In file included from src/intel/vulkan/grl/grl_metakernel_build_primref.c:40:
    ../src/intel/common/mi_builder.h:28:10: fatal error: 'genxml/genX_bits.h' file not found
    #include "genxml/genX_bits.h"

This change is already included in commit
41b2ed6 (genxml: generate opencl
packing headers) in the upstream.  Hence when updating mesa version,
this change can be safely removed.

Test-done: build mesa multiple times

Tracked-On: OAM-122542
Signed-off-by: Weifeng Liu <[email protected]>

src/intel/vulkan/grl/meson.build

@@ -158,7 +158,7 @@ foreach t : [['125', 'gfx125', 'dg2']]
     ],
     dependencies : [
       dep_valgrind, idep_nir_headers, idep_vulkan_util_headers, idep_vulkan_wsi_headers,
-      idep_vulkan_runtime_headers, idep_anv_headers,
+      idep_vulkan_runtime_headers, idep_anv_headers, idep_genxml,
     ],
     gnu_symbol_visibility : 'hidden',
   )