udh: inherit pythonnative
* fails without:
| -- Configuring the python interpreter...
| -- Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE)
| -- Python interpreter: PYTHON_EXECUTABLE-NOTFOUND
| -- Override with: -DPYTHON_EXECUTABLE=<path-to-python>
| CMake Error at cmake/Modules/UHDPython.cmake:54 (MESSAGE):
| Error: Python interpretor required by the build system.
(From meta-openembedded rev:
6a0d5149a131d98d4eba0198e12f7ba7c6ee3755)
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>