ALSA: export compress headers

Export compress_offload.h and compress_params.h for userland to use
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/Kbuild

@@ -6,3 +6,5 @@ header-y += hdsp.h
 header-y += hdspm.h
 header-y += sb16_csp.h
 header-y += sfnt_info.h
+header-y += compress_params.h
+header-y += compress_offload.h