adjust methods for preinstall

N/A

Change-Id: I4a374f49765dbc6b0a2b348682c5ce787a80c8a8
update script to generate enforcecopyinglibpackages.txt

N/A

Change-Id: Iab3fa3df1ded243b060ebbe05e73321620dc0ebe
Make switching fonts without reboot.

Ref-Id: I9df0f6a53579301b0b0ee70c483c78be9e92edd3
Change-Id: Icd81f908b2b58c983fe56bee1817978f4d9fcb4a
remove useless files for less space

Change-Id: I9f2127bee1faf0fff0bb3c8d7540c42272a21094
amend merged error

Change-Id: I6b49d47ee503d8c1d2ce64fc685ea57f68299efb
Signed-off-by: mochangming <mochangming@xiaomi.com>