sb/intel/i82801ix/hdaudio.c: Rename to `azalia.c`

Other Intel southbridges use this name for the HD audio codec.

Change-Id: I50dbf0a079944b7fa6cfd6622c0626bc9139af85
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43680
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/southbridge/intel/i82801ix/Makefile.inc

@@ -8,8 +8,8 @@ bootblock-y += early_init.c
 romstage-y += dmi_setup.c
 romstage-y += early_init.c
 
+ramstage-y += azalia.c
 ramstage-y += fadt.c
-ramstage-y += hdaudio.c
 ramstage-y += i82801ix.c
 ramstage-y += lpc.c
 ramstage-y += pci.c