common: Use complete path in inclusion

Subprojects usually have own "asm" directory,
so to eliminate collision specify complete path.

travis-ci: success for common: Use complete path in inclusion
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

include/common/bitops.h

 #ifndef __CR_COMMON_BITOPS_H__
 #define __CR_COMMON_BITOPS_H__
-#include "asm/bitops.h"
+#include "common/asm/bitops.h"
 #endif

include/common/page.h

 #ifndef __CR_COMMON_PAGE_H__
 #define __CR_COMMON_PAGE_H__
-#include "asm/page.h"
+#include "common/asm/page.h"
 #endif