Revert "ATMEL sensor hub, building kernel outside source tree fix"

This reverts commit 8f375ea18df41f63db0980febfa786b786928cad.
Simpler fix building ATMEL sensorhub outside source tree
Revert "STM sensor hub, building kernel outside source tree fix"

This reverts commit f43eee2e48b6579d7942e7c452ce32ccbfcb9259.
Simpler fix building STM sensorhub outside source tree