hg: portola/portola: Exclude NativeLibraryTest.java on musl.

[mikael.vidstedt at oracle.com]

Changeset: c3ce7781e3ff
Author:    asiebenborn <axel.siebenborn at sap.com>
Date:      2018-04-23 08:48 +0200
URL:       http://hg.openjdk.java.net/portola/portola/rev/c3ce7781e3ff

Exclude NativeLibraryTest.java on musl.

! test/jdk/TEST.ROOT
! test/jdk/java/lang/ClassLoader/nativeLibrary/NativeLibraryTest.java
! test/jtreg-ext/requires/VMProps.java