Fix the names for network preference. (SL4A side)

1. change the string constants name to all capital cases.
2. remove unused Facade APIs (set network preference by integer)

BUG: 26354635
Change-Id: Ibdef87a95931d98dbf724c2ed8fdb38dbe895f0d
3 files changed
tree: 06f51236d3fb078f7d60c6c685eef1bda80862f8
  1. sl4a/
  2. sl4n/