Add sdk_version option in aidl_interface

sdk_version don't have to be "28"(or something prebuilt) unless it is included in framework.jar

so, add option for it, and set its default value as "system_current"

Test: m -j
Bug: 126469673
Change-Id: Id1efe3394d61e2468bb63352259740b7d2bba9e0
1 file changed