meta-agl-jailhouse: Update the Jailhouse configuration files

meta-agl-jailhouse: Update the Jailhouse configuration files

The current state and Information about the patch:
- Updated Jailhouse root-cell(qemu-agl.c), apic-demo(agl-apic-demo.c), ivshmem-demo(agl-ivshmem-demo.c).
- Jailhouse non-root cell(agl-linux-x86-demo.c) is also working, but need some more tweak for UART redirection.
- Linux Kernel updated to the latest `queues/jailhouse` kernel branch.
- Updated the `recipes-kernel` structure to a more custom one.
- Updated conf/local.conf according to new `recipes-kernel` structure.
- Removed the Linux Kernel patches from the `recipes-kernel` as updated kernel already contain those patches.

This patch is the initial block for the virtio-blk support.

v2 (Anmol): Add descriptive comments for serial in cell configuration files
v3 (Anmol): Remove the ` IMAGE_INSTALL_append` and `EXTRA_IMAGE_FEATURES` from `50_local.conf.inc`
v4 (Anmol): Minor changes in `50_local.conf.inc`
v5 (jsmoeller): add meta-arm-toolchain to fix layer dependencies
v6 (jsmoeller): remove linux-yocto_5.14%.bbappend
v7 (Anmol):
    - Update the `SRCREV` for Jailhouse in `jailhous_git.bb`
    - Remove the patch `configs: arm64: Add support for RPi4 with more than 1G of memory` from `SRC_URI` in `jailhouse_git.bb`
    - Add the helper-scripts for the `runqemu-x86_64` and non-root linux cell.
v8 (Anmol): Updated the `agl-ivshmem-demo.c`.
v9 (Anmol):
    - Resolve build errors and update `jailhouse_git.bb`.
    - Add `PERF_forcevariable := "bash"` in `50_local.conf.inc`.
v10 (Anmol): Disable perf build.
v11 (jsmoeller): update qemu-agl.c to the 2G setup of runqemu after runtime test
v12 (jsmoeller): add sample inmate tarball (to be used later)

Change-Id: Idfa3e513488b5ecc8dfe9573f15c4b1c0edfd54f
Signed-off-by: Anmol <anmol.karan123@gmail.com>
Signed-off-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>