Add SE hal support for SNXXX

Move existing se hal to pn8x/
Add se hal for snxxx in snxxx/
Move existing extns/intf to intf/
Update Android.bp files to build hals for pn8x and snxxx

Bug: 188034640
Test: CTS, VTS, NFC On/OFf,
      Data exchange to SE using OMAPI APIs
Merged-In: I8df25d1b743f7bd012ccb021d92880f774581eef
Change-Id: I8df25d1b743f7bd012ccb021d92880f774581eef
110 files changed
tree: f493f0a60513b2c6ed5cbc46f03e469955f03fdd
  1. intf/
  2. pn8x/
  3. snxxx/
  4. .clang-format
  5. Android.bp
  6. METADATA
  7. OWNERS
  8. PREUPLOAD.cfg