kgdb: kdmx agent-proxy: fix incorrect use of ptsname()

Clean up and fix some areas that will be impacted by patches later in the series
   - testing for changed pty name was incorrect because ptsname() returns
     a global string, change to use ptsname_r()
   - change to ptsname_r() universally in preparation for adding status files

Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
1 file changed