[android] fbjni DoNotStrip annotation for oss native methods (#32567)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32567
As a first change to support proguard.
even if these methods could be not called from java, on jni level we register them and this registration will fail if methods are stripped.
Adding DoNotStrip to all native methods that are registered in OSS.
After integration of consumerProguardFiles in fbjni that prevents stripping by proguard DoNotStrip it will fix errors with proguard on.
Test Plan: Imported from OSS
Differential Revision: D19624684
Pulled By: IvanKobzarev
fbshipit-source-id: cd7d9153e9f8faf31c99583cede4adbf06bab507
