[ALSA] Enable Kconfig options for external firmwares

Some drivers are already ifdefs for enabling external firmwares
but not defined in Kconfig.  Now they appear as the kernel configs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index 4526904..9badbb3 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -2101,9 +2101,7 @@
 }
 
 
-#define FIRMWARE_IN_THE_KERNEL
-
-#ifdef FIRMWARE_IN_THE_KERNEL
+#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
 
 /*
  * DSP Code images
@@ -2242,7 +2240,7 @@
 	.size = sizeof assp_minisrc_image
 };
 
-#endif /* FIRMWARE_IN_THE_KERNEL */
+#endif /* CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL */
 
 #ifdef __LITTLE_ENDIAN
 static inline void snd_m3_convert_from_le(const struct firmware *fw) { }
@@ -2550,11 +2548,11 @@
 	if (chip->iobase)
 		pci_release_regions(chip->pci);
 
-#ifdef FIRMWARE_IN_THE_KERNEL
+#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
 	if (chip->assp_kernel_image != &assp_kernel)
 #endif
 		release_firmware(chip->assp_kernel_image);
-#ifdef FIRMWARE_IN_THE_KERNEL
+#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
 	if (chip->assp_minisrc_image != &assp_minisrc)
 #endif
 		release_firmware(chip->assp_minisrc_image);
@@ -2750,7 +2748,7 @@
 	err = request_firmware(&chip->assp_kernel_image,
 			       "ess/maestro3_assp_kernel.fw", &pci->dev);
 	if (err < 0) {
-#ifdef FIRMWARE_IN_THE_KERNEL
+#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
 		chip->assp_kernel_image = &assp_kernel;
 #else
 		snd_m3_free(chip);
@@ -2762,7 +2760,7 @@
 	err = request_firmware(&chip->assp_minisrc_image,
 			       "ess/maestro3_assp_minisrc.fw", &pci->dev);
 	if (err < 0) {
-#ifdef FIRMWARE_IN_THE_KERNEL
+#ifdef CONFIG_SND_MAESTRO3_FIRMWARE_IN_KERNEL
 		chip->assp_minisrc_image = &assp_minisrc;
 #else
 		snd_m3_free(chip);