hg: jdk10/hs: 8186465: Each j.l.Reference elapsed time log is incorrect

[sangheon.kim at oracle.com]

Changeset: 1520941b7b5d
Author:    sangheki
Date:      2017-09-28 12:13 -0700
URL:       http://hg.openjdk.java.net/jdk10/hs/rev/1520941b7b5d

8186465: Each j.l.Reference elapsed time log is incorrect
Summary: Fixed wrongly referencing variable and updated regression test to compare each elapsed time vs. sum of those
Reviewed-by: stefank, tschatzl

! src/hotspot/share/gc/shared/referenceProcessorPhaseTimes.cpp
! test/hotspot/jtreg/gc/logging/TestPrintReferences.java