Add tests for Legacy/EFI boot type selector

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Change-Id: I61d2219c462812c5fc2c2b2271514fe509df32fa
diff --git a/data/variables.py b/data/variables.py
index 0658cb6..0173e4e 100755
--- a/data/variables.py
+++ b/data/variables.py
@@ -132,6 +132,8 @@
 BOOT_MODE_SAFE = 'xyz.openbmc_project.Control.Boot.Mode.Modes.Safe'
 BOOT_MODE_SETUP = 'xyz.openbmc_project.Control.Boot.Mode.Modes.Setup'
 BOOT_MODE_REGULAR = 'xyz.openbmc_project.Control.Boot.Mode.Modes.Regular'
+BOOT_TYPE_LEGACY = 'xyz.openbmc_project.Control.Boot.Type.Types.Legacy'
+BOOT_TYPE_EFI = 'xyz.openbmc_project.Control.Boot.Type.Types.EFI'
 
 # Time variables.
 TIME_DBUS_BASE = 'xyz.openbmc_project.Time.'