Revert part of http://cgit.freedesktop.org/fontconfig/commit/fontconfig.pc.in?id=338ffe6b886ad4ba86ff471cb59c4a5e5ffbe408
We really dont do static linking so its not going to cause issues for us but as such this is harming us by adding absolute
paths into -I options into fontconfig.pc which is them prepended with sysroot when read back by cross pkg-config and
we end up with -I <sysroot>/<sysroot>/usr/include/fontconfig in CFLAGS of clients which depend on it. one such example
is matchbox-panel-2 and it was working fine with gcc < 5 because it tolerated non-existing paths in -I flags but gcc-5
gently refuses and rightly so.

Upstream-Status: Inappropriate [OE-Specific]
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Index: fontconfig-2.11.93/fontconfig.pc.in
===================================================================
--- fontconfig-2.11.93.orig/fontconfig.pc.in
+++ fontconfig-2.11.93/fontconfig.pc.in
@@ -15,4 +15,4 @@ Requires: @PKGCONFIG_REQUIRES@
 Requires.private: @PKGCONFIG_REQUIRES_PRIVATELY@
 Libs: -L${libdir} -lfontconfig
 Libs.private: @EXPAT_LIBS@ @FREETYPE_LIBS@ @ICONV_LIBS@ @LIBXML2_LIBS@
-Cflags: -I${includedir} @EXPAT_CFLAGS@ @FREETYPE_CFLAGS@ @ICONV_CFLAGS@ @LIBXML2_CFLAGS@
+Cflags: -I${includedir}