hg: jdk/submit: 8210960: Allow --with-boot-jdk-jvmargs to work during configure

[magnus.ihse.bursie at oracle.com]

Changeset: f3c1945fa8aa
Author:    ihse
Date:      2018-09-20 18:39 +0200
URL:       http://hg.openjdk.java.net/jdk/submit/rev/f3c1945fa8aa

8210960: Allow --with-boot-jdk-jvmargs to work during configure
Reviewed-by: erikj

! make/autoconf/basics.m4
! make/autoconf/boot-jdk.m4