hg: jdk9/hs/hotspot: 8154379: MIN_STACK_SHADOW_PAGES should equal DEFAULT_STACK_SHADOW_PAGES on aarch64

[chris.plummer at oracle.com]

Changeset: 55443e49586f
Author:    cjplummer
Date:      2016-04-25 12:11 -0700
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/55443e49586f

8154379: MIN_STACK_SHADOW_PAGES should equal DEFAULT_STACK_SHADOW_PAGES on aarch64
Summary: Undid previous change that had set it to 1.
Reviewed-by: enevill, adinn, aph

! src/cpu/aarch64/vm/globals_aarch64.hpp