Hard-code the path to libgetuid.so in epmfile.pm

...so that it is still found after 7b3133ad882b24834f87b478d00bf4ee92d3cd63
"instsetoo_native: shouldn't need instdir in include path."  And no idea why
getuid was in PLAINLIBS_URE instead of PLAINLIBS_NONE.

Change-Id: I5de2a79cbd3c0064cd7776e269f4792304ec34e3