hos: Automate some eks and bis checks

bootloader/hos/hos.c

@@ -269,6 +269,10 @@ void hos_eks_save(u32 kb)
 			u8 *keys = (u8 *)calloc(0x1000, 1);
 			se_get_aes_keys(keys + 0x800, keys, 0x10);
 
+			// Set SBK back.
+			if (FUSE(FUSE_PRIVATE_KEY0) == 0xFFFFFFFF)
+				se_aes_key_set(14, keys + 14 * 0x10, 0x10);
+
 			// Set magic and personalized info.
 			h_cfg.eks->magic = HOS_EKS_MAGIC;
 			h_cfg.eks->enabled[key_idx] = kb;