L版本如何关闭默认加密

[DESCRIPTION]
L版本手机默认加密，那如何关闭默认加密呢?
[SOLUTION]
关闭加密功能有两种情况：
1 How to disable default encryption in your own image
(1) Modify fstab.{ro.hardware} in ‘out’ folder
alps\out\target\product\[project]\root\ fstab.{ro.hardware}
Set the flag back to encryptable for /data

(2) Re-pack boot.img
make ramdisk-nodeps; make bootimage-nodpes
(3) Download the new boot.img by FlashTool
2 How to disable default encryption in your codebase
a) Modify fstab.{ro.hardware} in your codebase
device\mediatek\ [project]\ fstab.{ro.hardware}
If the project doesn’t have it own fstab.{ro.hardware} . Please create it
Modify device.mk to use the modified fstab.{ro.hardware} .

Set the flag back to encryptable for /data

b) Re-build boot.img
make bootimage
c) Download the new boot.img by flashtool