sunxi: Fix u-boot-spl.lds to refer to .vectors

Adjust the u-boot-spl.lds linker script to match the changes made in the
41623c91b09a0c865fab41acdaff30f060f29ad6 "arm: move exception handling out
of start.S files" commit.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

arch/arm/cpu/armv7/sunxi/u-boot-spl.lds

@@ -27,6 +27,7 @@ SECTIONS
 	.text      :
 	{
 		__start = .;
+		*(.vectors)
 		arch/arm/cpu/armv7/start.o	(.text)
 		*(.text*)
 	} > .sram