python2 to python3 conversion

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I1716d022bb67b1301f771c575842175372b04bef
diff --git a/configure.ac b/configure.ac
index d7e7812..0f78714 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,8 +9,8 @@
 AM_PROG_AR
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
-AM_PATH_PYTHON([2.7], [AC_SUBST([PYTHON], [echo "$PYTHON"])], [AC_MSG_ERROR(
-    [Could not find python-2.7 installed...python-2.7 is required])])
+AM_PATH_PYTHON([3], [AC_SUBST([PYTHON], [echo "$PYTHON"])], [AC_MSG_ERROR(
+    [Could not find python-3 installed...python-3 is required])])
 
 PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces])
 PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus])