axolotl-shiftos: set VENDOR_SECURITY_PATCH to PLATFORM_SECURITY_PATCH

As we are building the stock vendor with shiftos, make them match.

Change-Id: Ida4bb5129b1f5244467636bf338dbe0c4b03e887
Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
1 file changed