migrate to python3

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: If5f169a06a86ab09d053651fc3f54e45378f91eb
diff --git a/meson.build b/meson.build
index a9e7fb4..7134a35 100644
--- a/meson.build
+++ b/meson.build
@@ -18,7 +18,7 @@
 openpower_dbus_interfaces = dependency('openpower-dbus-interfaces')
 phosphor_dbus_interfaces = dependency('phosphor-dbus-interfaces')
 phosphor_logging = dependency('phosphor-logging')
-prog_python = import('python').find_installation('python')
+prog_python = import('python').find_installation('python3')
 sdbusplus = dependency('sdbusplus')
 sdbuspp = find_program('sdbus++')
 sdeventplus = dependency('sdeventplus')
diff --git a/power-sequencer/gen-ucd90160-defs.py b/power-sequencer/gen-ucd90160-defs.py
index 1eb0d06..b191ef6 100755
--- a/power-sequencer/gen-ucd90160-defs.py
+++ b/power-sequencer/gen-ucd90160-defs.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import os
 import yaml