libertas: make lbs_unset_basic_rate_flags() static

... by moving it into the file where it's sole user resides

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 69f94c9..37b9684 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -73,6 +73,23 @@
 /*                                                                   */
 /*********************************************************************/
 
+/**
+ *  @brief Unsets the MSB on basic rates
+ *
+ * Scan through an array and unset the MSB for basic data rates.
+ *
+ *  @param rates     buffer of data rates
+ *  @param len       size of buffer
+ */
+static void lbs_unset_basic_rate_flags(u8 *rates, size_t len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		rates[i] &= 0x7f;
+}
+
+
 static inline void clear_bss_descriptor (struct bss_descriptor * bss)
 {
 	/* Don't blow away ->list, just BSS data */