Move slice increments after completing header parsing am: dc110841d6 am: 9ab629f2b2 am: 2a1fd9a360 am: d2fa8b5c63

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libavc/+/16407185

Change-Id: Iaebaaf5b78a7cae8e1b2d101456b3eb7807e26d6