[Script] Sort modifiers according to JLS

* Correct order is:
  1. public
  2. protected
  3. private
  4. abstract
  5. default
  6. static
  7. final
  8. transient
  9. volatile
  10. synchronized
  11. native
  12. strictfp
* This is achieve through running automatic code cleanup in Intellij
  using "Missorted modifiers" inspection

Bug: 63597465
Test: make checkbuild, no manual changes, no functional changes
Change-Id: Id9c8a3c6bf1195b43d986c4324da94ca8c44367f