hg: jdk9/hs-rt: 8054009: Support SKIP_BOOT_CYCLE=false when invoked from JPRT

[alejandro.murillo at oracle.com]

Changeset: 9f7e3458a6b6
Author:    mikael
Date:      2014-07-31 11:14 -0700
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/rev/9f7e3458a6b6

8054009: Support SKIP_BOOT_CYCLE=false when invoked from JPRT
Reviewed-by: dholmes, erikj

! make/Jprt.gmk