Enforce print format warnings in input subsystem.

Treat compiler warnings as errors. Switch to portable
print formatting of such types as uint64_t and size_t.

Bug: 64258224
Bug: 63412298
Test: m -j, interact with the phone using touch input,
check the logcat output.

Change-Id: I70a170b0b7d4ac979d997324741d0aeb2e2c458e