Add build and run configs to exercise ARM_LINUX_KERNEL_AS_BL33 feature

This patch also adds test configurations that boot Linux kernel
directly without a normal world bootloader such as U-Boot

Refer to the following patches which fix the false dependency of
ARM_LINUX_KERNEL_AS_BL33 on RESET_TO_BL31 feature:

https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/8353
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/8352

Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I2eb1dfcc3ee6b4417a887c0bd3840f3d9da20dd0
diff --git a/group/tf-l1-boot-tests-misc/fvp-linux-as-bl33:fvp-linux.bl33-dtb-aemv8a.linux.bl33-debug b/group/tf-l1-boot-tests-misc/fvp-linux-as-bl33:fvp-linux.bl33-dtb-aemv8a.linux.bl33-debug
new file mode 100644
index 0000000..45065d8
--- /dev/null
+++ b/group/tf-l1-boot-tests-misc/fvp-linux-as-bl33:fvp-linux.bl33-dtb-aemv8a.linux.bl33-debug
@@ -0,0 +1,6 @@
+#
+# Copyright (c) 2021 Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+