all-archs: consolidate .data section definition in asm-generic

With this consolidation we can now modify the .data
section definition in one spot for all archs.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
index 4365162..a2e72d4 100644
--- a/arch/h8300/kernel/vmlinux.lds.S
+++ b/arch/h8300/kernel/vmlinux.lds.S
@@ -103,7 +103,7 @@
 	. = ALIGN(0x2000) ;
 		*(.data.init_task)
 	. = ALIGN(0x4) ;
-		*(.data)
+		DATA_DATA
 	. = ALIGN(0x4) ;
 		*(.data.*)