26a927621b
Defining int64_t, uint64_t, int32_t, uint32_t in HIPRTC
seem to result in conflicts with some apps as they use
their own definitions for these types. NVRTC also doesn't
define these. Hence remove them and replace their usage
with hip internal datatypes such as __hip_int64_t
Change-Id: Id314730bbd61c05f126f915c546052f956550a3f
[ROCm/clr commit: 946ea72c94]