Make gdbclient smarter for gdb[server] setup.

It can detect and support 3 different scenarios:

- 32-bit exe / 32-bit OS
- 64-bit exe / 64-bit OS
- 32-bit exe / 64-bit OS

Change-Id: I799a91277a5e2331aebf4b2f031e9a79f7ab5bb0
1 file changed