firmware: convert ymfpci driver to use firmware loader exclusively

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

WHENCE

@@ -31,3 +31,16 @@ drops binary dsp code images on our heads, but we don't get to see
 specs on the dsp."
 
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+
+Driver: ymfpci -- Yamaha YMF724/740/744/754 audio devices
+
+File: yamaha/ds1_ctrl.fw
+File: yamaha/ds1_dsp.fw
+File: yamaha/ds1e_ctrl.fw
+
+Licence: Unknown
+
+Found alsa-firmware package in hex form, with the following comment:
+   Copyright (c) 1997-1999 Yamaha Corporation. All Rights Reserved.
+
+--------------------------------------------------------------------------