Fixing settings upgrades

Did a full audit of upgrade scenarios and performed the following fixes.
* restored pre-existing location upgrade code that handled old upgrades.
preserves location choice from C straight to G.
* added string type format conversion for "old global" values that were
not implemented in the refactor : hdr, hdr+, grid buttons
* moved a "reset" that existed in upgraders that put the user in Camera
mode on upgrade. it should run for everglades upgraders along with size
changes.

Bug: 17317510
Change-Id: I87db511bfa89676525ee727620cb546c180a8ef6
3 files changed