Revert "relax /system/bin directory permissions"

It appears Chase has fixed their app, so we no longer need to keep these
permissions relaxed.

This reverts commit 53842f8a9044db84109ee84dbacef09491be15c2.

Bug: 119605322
Test: compiles and boots
Change-Id: Iba5e9ecd685eb386997a5e92638b8a1b5943ad4b
1 file changed