Removed hddimg from FSTYPES in wic test suite as
wic doesn't depend on hddimg anymore.
[YOCTO #10835]
(From OE-Core rev: a332d9618c2d0f46b6c0c8fdeee8bec4cc73f2cf)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>