ArmPlatformPkg/ArmJunoPkg: Added the ACPI 5.0 Tables

ArmPlatformPkg/ArmJunoPkg: Added the ACPI 5.0 Tables

These tables are:
- Differentiated System Description Table Fields (DSDT)
- Firmware ACPI Control Structure (FACS)
- Fixed ACPI Description Table (FADT)
- Generic Timer Description Table (GTDT)
- Multiple APIC Description Table (MADT)
- Secondary System Description Table Fields (SSDT)

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Graeme Gregory <graeme.gregory@linaro.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16652 6f19259b-4bc3-4df7-8a09-765794883524