unicode: Move static keyword to the front of declarations

Move the static keyword to the front of declarations of nfdi_test_data
and nfdicf_test_data, and resolve the following compiler warnings that
can be seen when building with warnings enabled (W=1):

fs/unicode/utf8-selftest.c:38:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

fs/unicode/utf8-selftest.c:92:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]
Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>

fs/unicode/utf8-selftest.c

@@ -35,7 +35,7 @@ unsigned int total_tests;
 #define test_f(cond, fmt, ...) _test(cond, __func__, __LINE__, fmt, ##__VA_ARGS__)
 #define test(cond) _test(cond, __func__, __LINE__, "")
 
-const static struct {
+static const struct {
 	/* UTF-8 strings in this vector _must_ be NULL-terminated. */
 	unsigned char str[10];
 	unsigned char dec[10];
@@ -89,7 +89,7 @@ const static struct {
 
 };
 
-const static struct {
+static const struct {
 	/* UTF-8 strings in this vector _must_ be NULL-terminated. */
 	unsigned char str[30];
 	unsigned char ncf[30];