hardening fixes with regards to the liblog headers on Android

[salyzyn]

Two hardening fixes with regards to the liblog headers on Android. One to use log/log.h for bundled applications, the other to not create build errors, and to use the supplied set, should android/log.h contain the logging macros.

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[salyzyn]

I signed it as an individual contributor.

[googlebot]

CLAs look good, thanks!

[salyzyn]

Notes:

fix in common/src/jni/main/cpp/org_conscrupt_NativeCrypto.cpp needs to move to common/src/jni.main/include/macros.h
fix in common/src/jni/unbuncled/include/log_compat.h needs to move to move to common/src/jni.main/include/macros.h

Web UI is not suitable for this migration/refactoring, will need to formulate a new pull request :-(