hg: jdk9/sandbox/jdk: Update makefiles with ICONV_LIBS/ICONV_CFLAGS, and OpenBSD fixes.

[magnus.ihse.bursie at oracle.com]

Changeset: 1ad1195e9c94
Author:    ihse
Date:      2015-12-21 00:37 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/1ad1195e9c94

Update makefiles with ICONV_LIBS/ICONV_CFLAGS, and OpenBSD fixes.

! make/launcher/LauncherCommon.gmk
! make/lib/Awt2dLibraries.gmk
! make/lib/Lib-java.instrument.gmk
! make/lib/Lib-jdk.jdwp.agent.gmk