imsm: support for third Sata controller

Add new UEFI TSata variable. Remove CSata variable.
This variable has been never exposed by UEFI.
Remove vulnerability to match different hbas with SATA variable.

Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
1 file changed