clk: mediatek: mt7622: rename AUDIO_AWB3 to AUDIO_AWB2

Rename AUDIO_AWB3 to AUDIO_AWB2 to match upstream linux naming in
preparation for OF_UPSTREAM support.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
diff --git a/include/dt-bindings/clock/mt7622-clk.h b/include/dt-bindings/clock/mt7622-clk.h
index 76fcaff..78804f4 100644
--- a/include/dt-bindings/clock/mt7622-clk.h
+++ b/include/dt-bindings/clock/mt7622-clk.h
@@ -206,7 +206,7 @@
 #define CLK_AUDIO_DLMCH			31
 #define CLK_AUDIO_ARB1			32
 #define CLK_AUDIO_AWB			33
-#define CLK_AUDIO_AWB3			34
+#define CLK_AUDIO_AWB2			34
 #define CLK_AUDIO_DAI			35
 #define CLK_AUDIO_MOD			36
 #define CLK_AUDIO_ASRCI3		37