Update mfg mode query to D-Bus interface

Updated manufacturing mode query to be based on D-Bus interface
instead of uint8_t as earlier. This is done to be in sync
with common D-Bus interface

Tested:
With updated special-mode-mgr daemon, which follows the
D-Bus interface
1. Verified that manufacturing mode commands are executed as
before, when in manufacturing mode.

Change-Id: I1828739751272b8d9151e2ab4a32c4861bbe90d7
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
3 files changed