Update header inclusions to follow IWYU (Include What You Use)
principle.

Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 lib/math/polynomial.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/math/polynomial.c b/lib/math/polynomial.c
index 66d383445fec..8c622099ef81 100644
--- a/lib/math/polynomial.c
+++ b/lib/math/polynomial.c
@@ -10,7 +10,8 @@
  *
  */
 
-#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/math.h>
 #include <linux/module.h>
 #include <linux/polynomial.h>
 
-- 
2.50.1