x86: Ensure that all relocation data is included in the image

Some toolchains put the relocation data into separate sections. Adjust the
linker script to catch this case. Without relocation data, U-Boot will not
boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/cpu/u-boot.lds

@@ -44,7 +44,9 @@ SECTIONS
 
 	. = ALIGN(4);
 	__rel_dyn_start = .;
-	.rel.dyn : { *(.rel.dyn) }
+	.rel.dyn : {
+		*(.rel*)
+	}
 	__rel_dyn_end = .;
 	. = ALIGN(4);
 	_end = .;