README: Update PREFERRED_VERSION to new openjdk-7 85b01-2.6.1
README: Update PREFERRED_VERSION to new openjdk-7 85b01-2.6.1

Signed-off-by: Richard Leitner <0f2fdd4d2dfbb4dde6236fd550af0a2071b34781@skidata.com>
Signed-off-by: Otavio Salvador <1d31b11c1b92bf5d043d36edfe7174db39a6b891@ossystems.com.br>

tobw/meta-java,rehsack/meta-java,rehsack/meta-java,rdm-dev/meta-java,tobw/meta-java,rdm-dev/meta-java,rdm-dev/meta-java,rehsack/meta-java,tobw/meta-java,rehsack/meta-java,rehsack/meta-java