d710: have d710 blobs override gs2-common blobs

Change-Id: I610f3dd9ac93a3211e959e79fe8795f07dd0abcd
d710: build stage2 initramfs into kernel

Change-Id: Icafff3c5ab270fc29203f7d988e575c60b657f0c
d710: cleanup and misc changes

- Boosted volume config
- Support for r760 to access files
- Styling cleanup
- Remove non-working Sprint Update Settings