multimedia/libva-intel-media-driver: fix build warning

In file included from media_driver/linux/gen12/ddi/media_libva_caps_g12.cpp:38:
media_driver/linux/common/os/i915/include/mos_bufmgr_priv.h:351:9: warning: 'ALIGN' macro redefined [-Wmacro-redefined]
#define ALIGN(value, alignment) ((value + alignment - 1) & ~(alignment - 1))

^

/usr/include/machine/param.h:79:9: note: previous definition is here
#define ALIGN(p) _ALIGN(p)

^