Convert last user of Time.format() to an alt.

Convert last frameworks/base/ user of
android.text.format.Time.format("%Y-%m-%d %H:%M:%S")
to use calculations based on java.time instead. This avoids future
Y2038 issues associated with Time.

Bug: 16550209
Test: build / boot / treehugger
Change-Id: I3843450350c26505211a2788c4ed114e30403fa8
1 file changed