azalia: Use `azalia_enter_reset` function

Also tidy up some adjacent comments.

Change-Id: I2e881900a52e42ab3f43ffe96cfbdcc63ff02e23
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48358
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/src/device/azalia_device.c b/src/device/azalia_device.c
index 5e9c6c9..e1899f1 100644
--- a/src/device/azalia_device.c
+++ b/src/device/azalia_device.c
@@ -72,8 +72,7 @@
 	if (!count)
 		goto no_codec;
 
-	/* Set Bit 0 to 0 to enter reset state (BAR + 0x8)[0] */
-	if (azalia_set_bits(base + HDA_GCTL_REG, 1, 0) < 0)
+	if (azalia_enter_reset(base) < 0)
 		goto no_codec;
 
 	if (azalia_exit_reset(base) < 0)