Rename data/pkg_staging to data/app-staging

Test: atest apex_e2e_tests
Bug: 126330086

(cherry picked from commit 950d5b4b8a55bda5874bfa75f3bcadf7160446a0)

Change-Id: Id98ecbad4f9452bc40a628ceb8c50ce20453d7ad
Merged-In: Id98ecbad4f9452bc40a628ceb8c50ce20453d7ad
1 file changed