mip: Set opt=3 by default.

mip will be installed by default on many boards. Make it small.

Signed-off-by: Jim Mussared <[email protected]>

Author: jimmo

micropython/mip/manifest.py

@@ -2,4 +2,4 @@
 
 require("urequests")
 
-package("mip")
+package("mip", opt=3)