Set min_sdk_version for FrameworksNetSmokeTests.

This change sets the minimum SDK version for the FrameworksNetSmokeTests to 31.

Test: TreeHugger
Flag: EXEMPT mainline
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ib49bca2cf8e04593f2ab5758e7aaf709058029b2
1 file changed