Automatically generated header guard fix.
Automatically generated header guard fix.

PiperOrigin-RevId: 246821376
GitOrigin-RevId: 9051d7b21288c4ff93aa0edc5102ffe6010be69c

google/tink,google/tink,google/tink,google/tink,google/tink,google/tink,google/tink,google/tink