Re-enabling some of the disabled tox warnings present on
the pylint.rc file
Re-enabling:
W1646: invalid-str-codec
Story: 2006796
Task: 43329
Signed-off-by: Bernardo Decco <bernardo.deccodesiqueira@windriver.com>
Change-Id: I2fdb91154510e839cab4804a5ef223f2cdd58cec