[ramdisk] add cvitek pre-built ramdisk

Change-Id: Ic7d2046a23358129eaf621b5558984a64fa7361d

ramdisk/rootfs/public/python3.7/arm64/lib/decimal.py

@@ -0,0 +1,11 @@
+
+try:
+    from _decimal import *
+    from _decimal import __doc__
+    from _decimal import __version__
+    from _decimal import __libmpdec_version__
+except ImportError:
+    from _pydecimal import *
+    from _pydecimal import __doc__
+    from _pydecimal import __version__
+    from _pydecimal import __libmpdec_version__