Changes

src/pcu_vty_functions: fix error on debian 13 i386

In Debian 13 armv7l, time_t and suseconds_t are "long long int" instead
of "long unsigned int" as seen on x86_64 and aarch64. Fix it by casting
to "long long int".

Related: OS#6828
Change-Id: I535d997f079dce902bbdd3eff22153201b53353f