AMD Northbridge LX: make GeodeLinkSpeed() function prototype non-static

Change-Id: Id914be1ae4dac96c51f2640f056af4ce58a248eb
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-on: http://review.coreboot.org/3364
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/northbridge/amd/lx/northbridge.h

@@ -29,4 +29,7 @@ int sizeram(void);
 /* northbridgeinit.c */
 void northbridge_init_early(void);
 uint32_t get_systop(void);
+
+/* pll_reset.c */
+unsigned int GeodeLinkSpeed(void);
 #endif

src/northbridge/amd/lx/pll_reset.c

@@ -18,6 +18,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "northbridge.h"
+
 static void pll_reset(void)
 {
 	msr_t msrGlcpSysRstpll;
@@ -82,7 +84,7 @@ static unsigned int CPUSpeed(void)
 }
 #endif
 
-static unsigned int GeodeLinkSpeed(void)
+unsigned int GeodeLinkSpeed(void)
 {
 	unsigned int speed;
 	msr_t msr;