hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/hw/audio/audio.h

@@ -0,0 +1,25 @@
+#ifndef HW_AUDIODEV_H
+#define HW_AUDIODEV_H 1
+
+/* es1370.c */
+int es1370_init(PCIBus *bus);
+
+/* sb16.c */
+int SB16_init(ISABus *bus);
+
+/* adlib.c */
+int Adlib_init(ISABus *bus);
+
+/* gus.c */
+int GUS_init(ISABus *bus);
+
+/* ac97.c */
+int ac97_init(PCIBus *bus);
+
+/* cs4231a.c */
+int cs4231a_init(ISABus *bus);
+
+/* intel-hda.c + hda-audio.c */
+int intel_hda_and_codec_init(PCIBus *bus);
+
+#endif