Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/usb/mtu3/Makefile b/drivers/usb/mtu3/Makefile
index 4a97158..3bf8cbc 100644
--- a/drivers/usb/mtu3/Makefile
+++ b/drivers/usb/mtu3/Makefile
@@ -2,10 +2,17 @@
 
 ccflags-$(CONFIG_USB_MTU3_DEBUG)	+= -DDEBUG
 
+# define_trace.h needs to know how to find our header
+CFLAGS_mtu3_trace.o	:= -I$(src)
+
 obj-$(CONFIG_USB_MTU3)	+= mtu3.o
 
 mtu3-y	:= mtu3_plat.o
 
+ifneq ($(CONFIG_TRACING),)
+	mtu3-y	+= mtu3_trace.o
+endif
+
 ifneq ($(filter y,$(CONFIG_USB_MTU3_HOST) $(CONFIG_USB_MTU3_DUAL_ROLE)),)
 	mtu3-y	+= mtu3_host.o
 endif
@@ -17,3 +24,7 @@
 ifneq ($(CONFIG_USB_MTU3_DUAL_ROLE),)
 	mtu3-y	+= mtu3_dr.o
 endif
+
+ifneq ($(CONFIG_DEBUG_FS),)
+	mtu3-y	+= mtu3_debugfs.o
+endif