* Untrusted apps are no longer allowed to directly access hwbinder on
Pie, implement a system service as a middleware between mlipay hal
and untrusted apps.
* Xiaomi uses similar solution for MIUI on Pie.
Change-Id: Ie52376b1f7bcd84d219fe73bceb4bdd6cc2b9980
* IFAA manager is based on OnePlusOSS, but adapted for Xiaomi's mlipay
interface.Also hardcode model detection to pass Alipay check.
* vendor.xiaomi.hardware.mtdservice@1.0.so is not actually used, thus
patchelf to drop it rather than shipping a blob.
* Modify libmlipay.so to allow load firmware from vendor
Change-Id: Idf3d3a8d40245984767f4ef5f60f9fe584e69f21
