package/xcb-proto: add upstream patch for python3.5 build failure v2

package/xcb-proto: add upstream patch for python3.5 build failure v2

Commit 37f0412 (xcb-proto: add upstream patch for python3.5 build
failure) added an upstream patch to fix building with python3.5, but
missed another one.

Add it now.

Fixes:
    http://autobuild.buildroot.org/results/b43/b43dc7013feddccaff913cb304d3ecb073ef6112/
    http://autobuild.buildroot.org/results/7e0/7e08d7ac2eb40033fd928d7c30d9660825964fa3/
    http://autobuild.buildroot.org/results/ca3/ca35393db46d6b08d3e0e9eaa55ff575c8cf36d7/
    [...]

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>