Log Message:
Fix the DESTDIR magic:

- After a recommendation from obache, use a linux ld.so.conf.d 
  drop-in file instead of appending to etc/ld.so.conf (which 
  gets wiped by a suse_base re-install, anyway).
  Update ld.so.cache via PLIST @exec.
- Create the ${PKG_SYSCONFDIR}/en_US symlink to 
  ${EMULDIR}/${TSMCLIENTSUBDIR}/ba/bin/en_US/ in PLIST via @exec.