android: fix building error in libmesa_st_mesa

android: fix building error in libmesa_st_mesa

Fixes the following building error due to libmesa_nir dependency:

In file included from external/mesa/src/mesa/state_tracker/st_glsl_to_nir.cpp:44:0:
external/mesa/src/compiler/nir/nir.h:42:25: fatal error: nir_opcodes.h: No such file or directory
 #include "nir_opcodes.h"
                         ^
compilation terminated.
build/core/binary.mk:706: recipe for target 'out/target/product/x86/obj/STATIC_LIBRARIES/libmesa_st_mesa_intermediates/state_tracker/st_glsl_to_nir.o' failed
make: *** [out/target/product/x86/obj/STATIC_LIBRARIES/libmesa_st_mesa_intermediates/state_tracker/st_glsl_to_nir.o] Error 1
make: *** Waiting for unfinished jobs....

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <robclark@freedesktop.org>