mt76: move mt76x2_debugfs in mt76-common module

Move mt76x2_debugfs code in mt76-common module since it is shared
between mt76x2 and mt76x2u
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/mediatek/mt76/Makefile

@@ -9,11 +9,12 @@ CFLAGS_trace.o := -I$(src)
 
 mt76x2-common-y := \
 	mt76x2_eeprom.o mt76x2_tx_common.o mt76x2_mac_common.o \
-	mt76x2_init_common.o mt76x2_common.o mt76x2_phy_common.o
+	mt76x2_init_common.o mt76x2_common.o mt76x2_phy_common.o \
+	mt76x2_debugfs.o
 
 mt76x2e-y := \
 	mt76x2_pci.o mt76x2_dma.o \
-	mt76x2_main.o mt76x2_init.o mt76x2_debugfs.o mt76x2_tx.o \
+	mt76x2_main.o mt76x2_init.o mt76x2_tx.o \
 	mt76x2_core.o mt76x2_mac.o mt76x2_mcu.o mt76x2_phy.o \
 	mt76x2_dfs.o mt76x2_trace.o
 

drivers/net/wireless/mediatek/mt76/mt76x2_debugfs.c

@@ -153,3 +153,4 @@ void mt76x2_init_debugfs(struct mt76x2_dev *dev)
 
 	debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc);
 }
+EXPORT_SYMBOL_GPL(mt76x2_init_debugfs);