mt76: mt7921: depend on lindebugfs and turn debugfs support on

Add the missing MODULE_DEPEND() calls for lindebugfs.
It is unfortunate that they are shared code between various bus
implementations.  Ideally we would leave the MODULE_DEPEND() calls
in the debugfs.c file instead of adding extra #ifdef guards to the
bus attachment files.

Turn debugfs support on for mt76(core) and the mt7921 module for now.

Sponsonred by:	The FreeBSD Foundation
MFC after:	3 days

sys/contrib/dev/mediatek/mt76/debugfs.c

@@ -124,3 +124,6 @@ mt76_register_debugfs_fops(struct mt76_phy *phy,
 	return dir;
 }
 EXPORT_SYMBOL_GPL(mt76_register_debugfs_fops);
+#if defined(__FreeBSD__)
+MODULE_DEPEND(mt76_core, lindebugfs, 1, 1, 1);
+#endif

sys/contrib/dev/mediatek/mt76/mt7921/pci.c

@@ -609,4 +609,7 @@ MODULE_VERSION(mt7921_pci, 1);
 MODULE_DEPEND(mt7921_pci, mt76_core, 1, 1, 1);
 MODULE_DEPEND(mt7921_pci, linuxkpi, 1, 1, 1);
 MODULE_DEPEND(mt7921_pci, linuxkpi_wlan, 1, 1, 1);
+#if defined(CONFIG_MT7921_DEBUGFS)
+MODULE_DEPEND(mt7921_pci, lindebugfs, 1, 1, 1);
+#endif
 #endif

sys/contrib/dev/mediatek/mt76/mt7921/usb.c

@@ -352,4 +352,7 @@ MODULE_DEPEND(mt7921_usb, mt76_core, 1, 1, 1);
 MODULE_DEPEND(mt7921_usb, linuxkpi, 1, 1, 1);
 MODULE_DEPEND(mt7921_usb, linuxkpi_wlan, 1, 1, 1);
 MODULE_DEPEND(mt7921_usb, linuxkpi_usb, 1, 1, 1);
+#if defined(CONFIG_MT7921_DEBUGFS)
+MODULE_DEPEND(mt7921_usb, lindebugfs, 1, 1, 1);
+#endif
 #endif

sys/modules/mt76/Makefile.inc

@@ -14,7 +14,7 @@ MT76_USB=		0
 # General options for common code so drivers can check.
 MT76_ACPI?=		0
 MT76_CONFIG_PM?=	0
-MT76_DEBUGFS?=		0
+MT76_DEBUGFS?=		1
 MT76_SOC_WED?=		0
 
 # Other

sys/modules/mt76/mt7921/Makefile

@@ -8,7 +8,7 @@ MT7921_PCI=		1
 MT7921_SDIO=		0
 MT7921_USB=		0
 
-MT7921_DEBUGFS=		0
+MT7921_DEBUGFS=		1
 
 # Common stuff.
 SRCS+=	init.c main.c mac.c mcu.c