staging: usbip: userspace: include headers in release tarballs

The header files should be included in generated tarballs for archives.
Signed-off-by: NNatanael Copa <ncopa@alpinelinux.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/usbip/userspace/src/Makefile.am

@@ -4,8 +4,9 @@ LDADD       = $(top_builddir)/libsrc/libusbip.la @PACKAGE_LIBS@
 
 sbin_PROGRAMS := usbip usbipd
 
-usbip_SOURCES := usbip.c utils.c usbip_network.c \
+usbip_SOURCES := usbip.h utils.h usbip.c utils.c usbip_network.c \
 		 usbip_attach.c usbip_detach.c usbip_list.c \
 		 usbip_bind.c usbip_unbind.c
 
-usbipd_SOURCES := usbipd.c usbip_network.c
+
+usbipd_SOURCES := usbip_network.h usbipd.c usbip_network.c