boot/grub2: enable squashfs support by default

Size growth is minimal and generally a non-issue for x86-based
platforms.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

boot/grub2/Config.in

@@ -154,8 +154,8 @@ endif # BR2_TARGET_GRUB2_I386_PC
 
 config BR2_TARGET_GRUB2_BUILTIN_MODULES
 	string "builtin modules"
-	default "boot linux ext2 fat part_msdos part_gpt normal biosdisk" if BR2_TARGET_GRUB2_I386_PC
-	default "boot linux ext2 fat part_msdos part_gpt normal efi_gop" \
+	default "boot linux ext2 fat squash4 part_msdos part_gpt normal biosdisk" if BR2_TARGET_GRUB2_I386_PC
+	default "boot linux ext2 fat squash4 part_msdos part_gpt normal efi_gop" \
 		if BR2_TARGET_GRUB2_I386_EFI || BR2_TARGET_GRUB2_X86_64_EFI
 
 config BR2_TARGET_GRUB2_BUILTIN_CONFIG