efi_loader: only reserve memory if fdt node enabled

Sub-nodes of /reserved-memory may be disabled. In this case we should not
reserve memory in the memory map.

Reported-by: Patrick DELAUNAY <patrick.delaunay@st.com>
Fixes: fef907b2e4 ("efi_loader: create reservations after
ft_board_setup")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Atish Patra <atish.patra@wdc.com>

cmd/bootefi.c

@@ -199,7 +199,8 @@ static void efi_carve_out_dt_rsv(void *fdt)
 			 * The /reserved-memory node may have children with
 			 * a size instead of a reg property.
 			 */
-			if (addr != FDT_ADDR_T_NONE)
+			if (addr != FDT_ADDR_T_NONE &&
+			    fdtdec_get_is_enabled(fdt, subnode))
 				efi_reserve_memory(addr, size);
 			subnode = fdt_next_subnode(fdt, subnode);
 		}