ARM: pxa/lubbock: remove lubbock_set_misc_wr() from global view

There are now no users of lubbock_set_misc_wr() outside lubbock.c, so
make this function static.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

arch/arm/mach-pxa/include/mach/lubbock.h

@@ -50,7 +50,3 @@
 #define LUBBOCK_LAST_IRQ	LUBBOCK_IRQ(6)
 
 #define LUBBOCK_SA1111_IRQ_BASE	(LUBBOCK_NR_IRQS + 32)
-
-#ifndef __ASSEMBLY__
-extern void lubbock_set_misc_wr(unsigned int mask, unsigned int set);
-#endif

arch/arm/mach-pxa/lubbock.c

@@ -119,12 +119,11 @@ void lubbock_set_hexled(uint32_t value)
 
 static struct gpio_chip *lubbock_misc_wr_gc;
 
-void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
+static void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
 {
 	unsigned long m = mask, v = set;
 	lubbock_misc_wr_gc->set_multiple(lubbock_misc_wr_gc, &m, &v);
 }
-EXPORT_SYMBOL(lubbock_set_misc_wr);
 
 static int lubbock_udc_is_connected(void)
 {