openpower-software-manager: Replace pythonnative with python3native

Change-Id: I870dc74253a48a2e5e5d3c1ec83cb67adc303938
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/recipes-phosphor/flash/openpower-software-manager_git.bb b/recipes-phosphor/flash/openpower-software-manager_git.bb
index 9c71a1e..2383295 100644
--- a/recipes-phosphor/flash/openpower-software-manager_git.bb
+++ b/recipes-phosphor/flash/openpower-software-manager_git.bb
@@ -10,7 +10,7 @@
 
 inherit autotools pkgconfig systemd
 inherit obmc-phosphor-dbus-service
-inherit pythonnative
+inherit python3native
 
 inherit ${@bb.utils.contains('DISTRO_FEATURES', 'openpower-ubi-fs', \
                              'openpower-software-manager-ubi', \