Rename .data.init_irqstack to .data..init_irqstack.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

arch/um/kernel/dyn.lds.S

@@ -94,7 +94,7 @@ SECTIONS
   .data           : {
     INIT_TASK_DATA(KERNEL_STACK_SIZE)
     . = ALIGN(KERNEL_STACK_SIZE);
-    *(.data.init_irqstack)
+    *(.data..init_irqstack)
     DATA_DATA
     *(.data.* .gnu.linkonce.d.*)
     SORT(CONSTRUCTORS)