c9d6e4ff51
Make package_extract_file() take an optional third argument which is the pathname (in the package zip) of a map of don't-care regions to skip over when writing the file. Modify syspatch() to take source and target don't-care maps and use them when patching the system partition. Add the wipe_block_device() function to do a discard of all data on the partition. Change-Id: I8c856054edfb6aab2f3e5177f16d9d78add20be4