build: Move AM_CFLAGS and AM_CPPFLAGS to the top of Makefile.am

AM_CFLAGS and AM_CPPFLAGS aren't positional, so putting them at a
random place in Makefile.am can be misleading.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

Makefile.am

@@ -4,6 +4,13 @@ endif
 
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 
+AM_CPPFLAGS =					\
+	-I$(top_builddir)/src			\
+	-I$(top_srcdir)/src			\
+	-I$(top_builddir)/protocol
+
+AM_CFLAGS = $(GCC_CFLAGS) $(FFI_CFLAGS)
+
 aclocaldir = $(datadir)/aclocal
 dist_aclocal_DATA = wayland-scanner.m4
 
@@ -214,12 +221,5 @@ fixed_benchmark_LDADD = libtest-runner.la
 os_wrappers_test_SOURCES = tests/os-wrappers-test.c
 os_wrappers_test_LDADD = libtest-runner.la
 
-AM_CPPFLAGS =					\
-	-I$(top_builddir)/src			\
-	-I$(top_srcdir)/src			\
-	-I$(top_builddir)/protocol
-
-AM_CFLAGS = $(GCC_CFLAGS) $(FFI_CFLAGS)
-
 exec_fd_leak_checker_SOURCES = tests/exec-fd-leak-checker.c
 exec_fd_leak_checker_LDADD = libtest-runner.la