Fix installing generated header to include/include
Fix installing generated header to include/include

This isn't the ideal solution, but a lot more cleanups are needed for
how install is used.

Change-Id: I63a9c1a46d0da13ee4373038ece228005207271a

ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP,ROCm-Developer-Tools/HIP