Add missing mipmap API entries
Add missing mipmap API entries

Introduce hipFreeMipmappedArray(), hipMallocMipmappedArray() and hipGetMipmappedArrayLevel() APIs.

Change-Id: I878228c79fa1c54536c17d6baf45f83d51d2b1c7

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