python-3-manifest: fix adding imp to importlib
Commit: 512334f102a33833d39af53467894315f0715d07
"python-3.5-manifest: Add imp to importlib"
added imp to importlib in the generated manifest, but not in the generator script.
(From OE-Core rev: 70bea8d0be82781ce615794434225418cce63a90)
Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>