Implement equals and hashCode

This keeps SmsHeader in sync with cellbroadcastservice.SmsHeader.

Bug: 148482334
Test: builds
Change-Id: I2a3188a603595e4c97acf6413036dcddf35c0b87
Merged-In: : I2a3188a603595e4c97acf6413036dcddf35c0b87
1 file changed