serial: samsung: Staticize local symbol

Staticize symbols not exported and not used outside of file.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Krzysztof Kozlowski 2015-05-02 00:40:04 +09:00 • committed by Greg Kroah-Hartman
commit 75781979f8