ltp-ddt: update to the latest rev, bump the version

* Fix KERNEL_DIR vs. KERNEL_INC properly, drop not needed Makefile patch
* Pass CC and KERNEL_CC to preserve the necessary system flags
* Tons of other fixes and new testcases

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>