prevent new more than one Resources for system

MIUI-28807

Change-Id: If9da2305fd41108c7dc8481b11097cf48ee542a2
Signed-off-by: mochangming <mochangming@xiaomi.com>
Add Security Service.

MIUI-28526

Change-Id: I4fb9354abebc7c97a5d16eceba9997e0e4e1785b
Signed-off-by: mochangming <mochangming@xiaomi.com>
kill system application's backgroud process started by broadcast for more memory

MIUI-28628

Change-Id: I2648ef98437f48b1bf5c16da4ed1ce7e0d80d480
Signed-off-by: mochangming <mochangming@xiaomi.com>