bootable: grub: use the bootable's id for each grub "board"

- otherwise they're all "generic"

Signed-off-by: Ricardo Pardini <[email protected]>

Author: rpardini

bash/bootable/grub.sh

@@ -1,8 +1,10 @@
 #!/usr/bin/env bash
 
 function list_bootable_grub() {
+	: "${bootable_info['BOOTABLE_ID']:?"bootable_info['BOOTABLE_ID'] is unset"}"
 	declare -g -A bootable_boards=()
-	bootable_boards["generic"]="NOT=used" # A single, generic "board" for all grub bootables
+	declare board_name="${bootable_info['BOOTABLE_ID']}-generic"
+	bootable_boards["${board_name}"]="NOT=used" # A single, generic "board" for all grub bootables
 }
 
 function build_bootable_grub() {