libxml2: use HTTP instead of FTP in SRC_URI

HTTP is more reliable in general so use it instead of FTP.

(From OE-Core rev: bdc71968923941b0720d34a5ce06d82ab2a63b4f)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/libxml/libxml2_2.9.4.bb

@@ -11,7 +11,7 @@ LIC_FILES_CHKSUM = "file://Copyright;md5=2044417e2e5006b65a8b9067b683fcf1 \
 
 DEPENDS = "zlib virtual/libiconv"
 
-SRC_URI = "ftp://xmlsoft.org/libxml2/libxml2-${PV}.tar.gz;name=libtar \
+SRC_URI = "http://www.xmlsoft.org/sources/libxml2-${PV}.tar.gz;name=libtar \
            http://www.w3.org/XML/Test/xmlts20080827.tar.gz;name=testtar \
            file://libxml-64bit.patch \
            file://ansidecl.patch \