winpriv.h was moved from hw/xwin to hw/xwin/glx in November

hw/xwin/Makefile.am was referencing this instead of hw/xwin/glx/Makefile.am

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>

hw/xwin/Makefile.am

@@ -117,7 +117,6 @@ SRCS =	InitInput.c \
 	winms.h \
 	winmultiwindowclass.h \
 	winprefs.h \
-	winpriv.h \
 	winresource.h \
 	winwindow.h \
 	XWin.rc \

hw/xwin/glx/Makefile.am

@@ -2,6 +2,7 @@ noinst_LTLIBRARIES = libXwinGLX.la
 
 libXwinGLX_la_SOURCES = \
 	winpriv.c \
+	winpriv.h \
 	glwindows.h \
 	glwrap.c \
 	indirect.c \