include of <linux/types.h> is preferred over <asm/types.h>

Impact: fix 15 make headers_check warnings:

include of <linux/types.h> is preferred over <asm/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/if_pppol2tp.h b/include/linux/if_pppol2tp.h
index a7d6a22..c7a6688 100644
--- a/include/linux/if_pppol2tp.h
+++ b/include/linux/if_pppol2tp.h
@@ -15,7 +15,7 @@
 #ifndef __LINUX_IF_PPPOL2TP_H
 #define __LINUX_IF_PPPOL2TP_H
 
-#include <asm/types.h>
+#include <linux/types.h>
 
 #ifdef __KERNEL__
 #include <linux/in.h>