Add missing __host__ __device__ to the memory management functions.
Add missing __host__ __device__ to the memory management functions.

zhenglaizhang/thrust,xiongzhanblake/thrust_src,sarvex/thrust,thvasilo/thrust,sarvex/thrust,marksantos/thrust,Ricardo666666/thrust,zeryx/thrust,egaburov/thrust,zeryx/thrust,zhenglaizhang/thrust,zeryx/thrust,xiongzhanblake/thrust,zhenglaizhang/thrust,thvasilo/thrust,xiongzhanblake/thrust_src,jaredhoberock/thrust,Ricardo666666/thrust,egaburov/thrust,dachziegel/thrust,thrust/thrust,raygit/thrust,marksantos/thrust,xiongzhanblake/thrust_src,andrewcorrigan/thrust-multi-permutation-iterator,arnabgho/thrust,Ricardo666666/thrust,andrewcorrigan/thrust-multi-permutation-iterator,xiongzhanblake/thrust,sdalton1/thrust,marksantos/thrust,sarvex/thrust,mohamed-ali/thrust,dachziegel/thrust,andrewcorrigan/thrust-multi-permutation-iterator,GrimDerp/thrust,raygit/thrust,arnabgho/thrust,sdalton1/thrust,GrimDerp/thrust,jaredhoberock/thrust,arnabgho/thrust,GrimDerp/thrust,thrust/thrust,mohamed-ali/thrust,thrust/thrust,thvasilo/thrust,jaredhoberock/thrust,xiongzhanblake/thrust,sdalton1/thrust,dachziegel/thrust,raygit/thrust,egaburov/thrust,mohamed-ali/thrust,jaredhoberock/thrust,thrust/thrust,jaredhoberock/thrust,thrust/thrust