[ALSA] ice1712, ice1724 - Code clean up

Clean up ice1712/ice1724 codes.  The board-specific data is allocated
locally in each code instead of having an ungly union in struct ice1712.
Also, fix coding issues in prodigy_hifi.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/pci/ice1712/ice1712.h

@@ -366,56 +366,7 @@ struct snd_ice1712 {
 	struct mutex gpio_mutex;
 
 	/* other board-specific data */
-	union {
-		/* additional i2c devices for EWS boards */
-		struct snd_i2c_device *i2cdevs[3];
-		/* AC97 register cache for Aureon */
-		struct aureon_spec {
-			unsigned short stac9744[64];
-			unsigned int cs8415_mux;
-			unsigned short master[2];
-			unsigned short vol[8];
-			unsigned char pca9554_out;
-		} aureon;
-		/* AC97 register cache for Phase28 */
-		struct phase28_spec {
-			unsigned short master[2];
-			unsigned short vol[8];
-		} phase28;
-		/* a non-standard I2C device for revo51 */
-		struct revo51_spec {
-			struct snd_i2c_device *dev;
-			struct snd_pt2258 *pt2258;
-		} revo51;
-		/* Hoontech-specific setting */
-		struct hoontech_spec {
-			unsigned char boxbits[4];
-			unsigned int config;
-			unsigned short boxconfig[4];
-		} hoontech;
-		struct {
-			struct ak4114 *ak4114;
-			unsigned int analog: 1;
-		} juli;
-		struct {
-			struct ak4114 *ak4114;
-			/* rate change needs atomic mute/unmute of all dacs*/
-			struct mutex mute_mutex;
-		} prodigy192;
-		struct {
-			struct {
-				unsigned char ch1, ch2;
-			} vol[8];
-		} se;
-		struct prodigy_hifi_spec {
-			unsigned short master[2];
-			unsigned short vol[8];
-		} prodigy_hifi;
-		struct prodigy_hd2_spec {
-			unsigned short vol[2];
-		} prodigy_hd2;
-	} spec;
-
+	void *spec;
 };