soc: qcom: Fix printk format warnings from subsystem restart

Fix three spots in subsystem_restart.c that should use %lld to log print a
time64_t value.

Fixes: 4fcd37a4 ("soc: qcom: Add snapshot of SSR, PIL, Sysmon, and PDR drivers")
Change-Id: Ic0dedbadebc817e544ce736a6cfec7088ebc7309
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>