kbuild: arm26,sparc use generic asm-offset support

Rename all includes to use asm-offsets.h to match generic name

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/arch/sparc/kernel/sclow.S b/arch/sparc/kernel/sclow.S
index 3a867fc..136e37c 100644
--- a/arch/sparc/kernel/sclow.S
+++ b/arch/sparc/kernel/sclow.S
@@ -7,7 +7,7 @@
  */
 
 #include <asm/ptrace.h>
-#include <asm/asm_offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/errno.h>
 #include <asm/winmacro.h>
 #include <asm/thread_info.h>