arm-bsp/fvp-base: support poky-altcfg

Add the bits to enable poky-altcfg to boot to prompt on fvp-base.
Unfortunately, ssh takes a very long time to come up, which causes the
ssh test to timeout.  So, don't enable this by default in CI.
Also, switch to building full-cmdline instead of sato, since we're never
actually testing the graphics on this platform.

Signed-off-by: Jon Mason <jon.mason@arm.com>

ci/fvp-base.yml

@@ -9,5 +9,5 @@ header:
 machine: fvp-base
 
 target:
-  - core-image-sato
+  - core-image-full-cmdline
   - boot-wrapper-aarch64

meta-arm-bsp/conf/machine/fvp-base.conf

@@ -11,13 +11,15 @@ ARM_SYSTEMREADY_ACS_CONSOLE = "default"
 EXTRA_IMAGEDEPENDS = "${ARM_SYSTEMREADY_FIRMWARE}"
 PREFERRED_VERSION_trusted-firmware-a ?= "2.10.%"
 
-MACHINE_FEATURES = "efi"
+MACHINE_FEATURES = "efi vfat"
 
 IMAGE_NAME_SUFFIX = ""
 IMAGE_FSTYPES += "wic"
 WKS_FILE ?= "efi-disk.wks.in"
 
 SERIAL_CONSOLES = "115200;ttyAMA0"
+# FIXME -  This is being upstreamed.  Remove once that has occurred.
+KERNEL_CONSOLE ?= "${@','.join(d.getVar('SERIAL_CONSOLES').split(' ')[0].split(';')[::-1]) or 'ttyS0'}"
 
 PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
 KERNEL_DTB_NAME = "fvp-base-revc.dtb"
@@ -29,7 +31,7 @@ EXTRA_IMAGEDEPENDS += "trusted-firmware-a"
 # FVP u-boot configuration
 UBOOT_MACHINE = "vexpress_fvp_defconfig"
 
-EFI_PROVIDER ?= "grub-efi"
+EFI_PROVIDER ?= "${@bb.utils.contains("DISTRO_FEATURES", "systemd", "systemd-boot", "grub-efi", d)}"
 
 # As this is a virtual target that will not be used in the real world there is
 # no need for real SSH keys.

meta-arm/wic/efi-disk.wks.in

@@ -8,4 +8,4 @@ part / --source rootfs --fstype=ext4 --label root --align 1024 --use-uuid
 
 part swap --size 44 --label swap --fstype=swap --use-uuid
 
-bootloader --ptable gpt --timeout=5 --append="rootwait rootfstype=ext4"
+bootloader --ptable gpt --timeout=5 --append="rootwait rootfstype=ext4 console=${KERNEL_CONSOLE}"