python: fix modules_lib_dirs typo in patch-2.7-005-stagng-headers-libs.patch

Closes #3169

Typo in modules_lib_dirs section of patch specified modules_include_dirs
instead of modules_lib_dirs.  This matters if PYTHON_MODULES_LIB
is not passed into the script.

Signed-off-by: Mark Wickham <markw@digi.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>