update_engine: Disable puffin in minor version 4

This patch disables puffin for minor version 4, but keeps BROTLI_BSDIFF in the
same minor version.  Also adds puffin for minor version 5, but it does not
enable it.

BUG=b:72815313
BUG=chromium:810184
TEST=update_engine unittests pass
TEST=update_payload unittests pass
TEST=test_paycheck.sh on two images with minor version 4 pass
TEST=brill_update_payload generate/verify pass

Change-Id: I814fc126d67207501d419cff9c575cd13d877b48
Reviewed-on: https://chromium-review.googlesource.com/907223
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/scripts/update_payload/common.py b/scripts/update_payload/common.py
index 42c91c2..4e7b2e3 100644
--- a/scripts/update_payload/common.py
+++ b/scripts/update_payload/common.py
@@ -39,7 +39,8 @@
 INPLACE_MINOR_PAYLOAD_VERSION = 1
 SOURCE_MINOR_PAYLOAD_VERSION = 2
 OPSRCHASH_MINOR_PAYLOAD_VERSION = 3
-PUFFDIFF_MINOR_PAYLOAD_VERSION = 4
+BROTLI_BSDIFF_MINOR_PAYLOAD_VERSION = 4
+PUFFDIFF_MINOR_PAYLOAD_VERSION = 5
 
 #
 # Payload operation types.