grub: Use cmdline embedded in UKI

iPXE: Add missing console=ttyUSB0 argument

Signed-off-by: iwanicki92 <iwanicki92@gmail.com>

meta-dts-distro/recipes-bsp/grub/grub-efi/grub.cfg

@@ -3,7 +3,5 @@ default=DTS
 timeout=0
 
 menuentry 'DTS' {
-    regexp -s 2:rootfs_drive (.*)(hd[0-9]*)(.*) $cmdpath
-    probe --part-uuid ($rootfs_drive,msdos2) --set=rootfs
-    chainloader /EFI/DTS/dtsx64.efi root=PARTUUID=$rootfs rootwait console=ttyS0,115200
+    chainloader /EFI/DTS/dtsx64.efi
 }

scripts/generate-ipxe-menu.sh

@@ -33,7 +33,7 @@ EOF
 
 gen_without_fum_workaround_ipxe() {
   gen_common_ipxe "$@"
-  echo "chain \${dts_prefix}/ipxe_dtsx64-\${dts_version}.efi"
+  echo "chain \${dts_prefix}/ipxe_dtsx64-\${dts_version}.efi console=ttyUSB0"
 }
 
 VERSION=$1