32e178cbca
HIP_VERSION_GITDATE won't be defined when git isn't
installed. This will lead to building failure of
deviceLib.hipVersion. When git isn't installed, set
HIP_VERSION_GITDATE as 0 by default.
Change-Id: Icf5763449ccec833d9efda90ffe3a86fb53bdb82
[ROCm/clr commit: 1338ebde58]