ASB September 2017, version string to 2017-09-01

Implemented patches:
===========================================
Framework
CVE-2017-0752 A-62196835 [2]     High

Libraries
CVE-2017-6983 A-63852675         High
CVE-2017-0755 A-32178311         High

Media Framework
CVE-2017-0756 A-34621073         Critical
CVE-2017-0757 A-36006815         Critical
CVE-2017-0758 A-36492741         Critical
CVE-2017-0759 A-36715268         Critical
CVE-2017-0760 A-37237396         Critical
CVE-2017-0761 A-38448381         Critical
CVE-2017-0762 A-62214264         Critical
CVE-2017-0763 A-62534693         Critical
CVE-2017-0764 A-62872015         Critical
CVE-2017-0765 A-62872863         Critical
CVE-2017-0767 A-37536407 [2]     High
CVE-2017-0768 A-62019992         High
CVE-2017-0770 A-38234812         High
CVE-2017-0772 A-38115076         High
CVE-2017-0773 A-37615911         High
CVE-2017-0774 A-62673844 [2]     High
CVE-2017-0775 A-62673179         High
CVE-2017-0776 A-38496660         Moderate
CVE-2017-0777 A-38342499         Moderate
CVE-2017-0778 A-62133227         Moderate
CVE-2017-0779 A-38340117 [2]     Moderate

Runtime
CVE-2017-0780 A-37742976         High

System
CVE-2017-0781 A-63146105 [2]     Critical
CVE-2017-0782 A-63146237 [2][3]  Critical
CVE-2017-0783 A-63145701         High
CVE-2017-0784 A-37287958         Moderate
CVE-2017-0785 A-63146698         Moderate

Qualcomm Components
CVE-2017-8278 A-62379474         High


NOT implemented, because not relevant:
===========================================
Libraries
CVE-2017-0753 A-62218744 High 7.1.1, 7.1.2, 8.0

Media Framework
CVE-2017-0769 A-37662122 High 7.0, 7.1.1, 7.1.2, 8.0
CVE-2017-0771 A-37624243 High 7.0, 7.1.1, 7.1.2
CVE-2017-0766 A-37776688 High (see comment)
Comment to CVE-2017-0766:
This change aims at removing external/jhead from the build tree.
It is however needed for some older devices, so better to keep it in 
the build tree; it is anyhow only included in a build, if defined

Change-Id: I0da0e7e8ed39d46a53fdb60b391edcdba41f4d17