Fix for SR image crash

* Crash was coming from grub ( using master branch)
* using a stable version(2.06) of grub fixed the issue

Signed-off-by: jisjos01 <jiss.jose@arm.com>

Updated the SystemReady web links in the README.md

Added README for prebuilt_images folder

Added README with instructions to uncompress the SR pre-built image

Updates in common_config

Updated common_config.cfg for IR and ES images to build with the latest
dependent software
Updated sr_common_config.cfg to remove the release tag to build with the
latest code.

Uploaded the pre-built SystemReady ACS SR image.
Updated the changelog.txt with the changes of this release

SystemReady SR v1.0 ACS

Code and scripts to build the SystemReady SR Image
Documentation in README with steps to build the SR Image and verify on
FVP
Move from LuvOS to Linux v5.15 in the ACS Image
Minor enhancements and bugfixes

Automatic dump the dtb for IR image

Changes to automatically dump dtb to a file for SystemReady IR image under acs_results folder

link security interface extension to top level README

Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>

Solve the issue due to certificate verification during build

Solve the "SSL certificate problem: certificate has expired" issue
during build of BusyBox and grub
Get source from latest code for build by updating common_config.cfg

ES and IR README Updates

Added commands to uncompress the Pre-built images

Prebuilt images for v1.0 Release

Systemready 1.0 Changes 

Upadate tag names of BBR,BSA,Linux-ACS to v21.09_REL1.0 in common_config

Signed-off-by: jisjos01 <jiss.jose@arm.com>

SystemReady 1.0 Rel Changes

 1. Support to build IR ACS live image : build scripts and build instructions in documentation
 2. Upgrading ACS image to v5.13 kernel
 3. Refinement of UEFI-SCT Sequence files for IR and ES and verification
 4. Migrate to the version V21.08.00 of FWTS
 5. BBR: Migrate to edk2-test-stable202108 tag of SCT
 6. General improvements in scripts
 7. Bug Fixes

Co-authored-by: Edhaya Chandran <edhaya.chandran@arm.com>
Co-authored-by: Chetan Rathore <chetan.rathore@arm.com>
Co-authored-by: Jiss Jose <jiss.jose@arm.com>

Signed-off-by: jisjos01 <jiss.jose@arm.com>

Add check for the existence of ramdisk-busybox.img before running FWT…

There could be situations when Linux with file "Image" in root directory exists
on the file system with a lower number than the file system with ACS tests
(Linux is installed on eMMC, ACS tests - external storage).
So, the wrong Linux without ramdisk-busybox.img is booting and FWTS tests are not performed.

Signed-off-by: Nazarii Obukhovskyi <nazarii.obukhovskyi@globallogic.com>

Added prebuilt images for v21.07_0.9_BETA

Updated to github links

Updated changelog.txt for v21.07_0.9_BETA Release

SystemReady ACS v0.9 Beta Updates

Support to build ES ACS live image : build scripts and instructions in documentation
Updated the ES README.md to reflect the changes
Added a common configuration file to set external and internal software versions for build
Upgrading ACS image to v5.11 kernel
Refinement of UEFI-SCT Sequence files for IR and ES and verification
Support for CapsuleApp.efi in build and automation for ES and IR
Migrate to the version V21.06.00 + of FWTS
Migrate to 2821093d6f2b3521c453834f0657cf07c0908155 tag of SCT
General improvements in scripts
Bug Fixes

Co-authored-by: Edhaya Chandran <edhaya.chandran@arm.com>
Co-authored-by: Jeff Booher-Kaeding <jeff.booher-kaeding@arm.com>
Co-authored-by: Jiss Jose <jiss.jose@arm.com>

Signed-off-by: Edhaya Chandran <edhaya.chandran@arm.com>

Add aarch64 native build support