configure: avoid linking against libgcrypt for libexslt

There are at least 2 different versions libgcrypt.so.20 and
libgcrypt.so.11 in use, and it's a private dependency of libexslt
anyway, so filter this out of LIBEXSLTLIBS.

Change-Id: Iafc33ef5ead2a86bedb4d5e485f6a16eb0544686

configure.ac

@@ -8038,7 +8038,7 @@ if test "$with_system_libxml" = "yes"; then
         PKG_CHECK_MODULES(LIBEXSLT, libexslt)
         LIBEXSLT_CFLAGS=$(printf '%s' "$LIBEXSLT_CFLAGS" | sed -e "s/-I/${ISYSTEM?}/g")
         FilterLibs "${LIBEXSLT_LIBS}"
-        LIBEXSLT_LIBS="${filteredlibs}"
+        LIBEXSLT_LIBS=$(printf '%s' "${filteredlibs}" | sed -e "s/-lgpg-error//"  -e "s/-lgcrypt//")
     fi
 
     dnl Check for xsltproc