python-pycodestyle: Fix conflict error with python3-pycodestyle during do_rootfs

Signed-off-by: Lei Maohui <leimaohui@cn.fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python-pycodestyle_2.4.0.bb

@@ -2,3 +2,9 @@ inherit setuptools
 require python-pycodestyle.inc
 
 RDEPENDS_${PN} += "${PYTHON_PN}-lang"
+
+do_install_append () {
+        if [ -f ${D}${bindir}/pycodestyle ]; then
+                mv ${D}${bindir}/pycodestyle ${D}${bindir}/pycodestyle-2
+        fi
+}