Add minApiLevel 30 argument to stats-log-api-gen

Add minApiLevel 30 argument to stats-log-api-gen to maintain
backwards compatibility with R in the next Android release.

Bug: 160938178
Test: m statslog-textclassifier-java-gen
Test: inspect generated TextClassifierStatsLog
Change-Id: Ic3fef461ca70795f02ae3eb2ef6c5ad34d1b6a4e
Merged-In: Ic3fef461ca70795f02ae3eb2ef6c5ad34d1b6a4e
1 file changed