RFR - JDK-8175556 : Add support for android-arm target platform

[Magnus Ihse Bursie]

On 2017-02-23 16:34, Gary Adams wrote:
> As a follow up to the recent openjdk arm sources moving into open repos,
> this set of changes enables building android-arm vm instead of the 
> zero vm.
>
> When the android support was initially added to the mobile/dev repos we
> required support for older android platforms. e.g. api level 19 for 
> android 4.4
> devices. This update raises that baseline to api level 21 for android 
> 5.0 and higher.
>
>   JIRA: https://bugs.openjdk.java.net/browse/JDK-8175556
>   Webrev: http://cr.openjdk.java.net/~gadams/8175556/webrev.00/webrev/
Is that all changes? No build system changes required? (The one you have 
published seems to be a merge mistake from a recent patch from Erik.)

/Magnus
>
> I plan to push these changes on Mon Feb 27, if there are no objections.