blackfin: Add <asm/clock.h> to numerous drivers

With d6a320d we moved some clock externs out of blackfin_local.h and
into clock.h but now need to include <asm/clock.h> in more drivers to
avoid warnings.

Cc: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Tom Rini <trini@ti.com>

arch/blackfin/lib/board.c

@@ -23,6 +23,7 @@
 
 #include <asm/cplb.h>
 #include <asm/mach-common/bits/mpu.h>
+#include <asm/clock.h>
 #include <kgdb.h>
 
 #ifdef CONFIG_CMD_NAND

board/cm-bf548/video.c

@@ -11,6 +11,7 @@
 #include <config.h>
 #include <malloc.h>
 #include <asm/blackfin.h>
+#include <asm/clock.h>
 #include <asm/gpio.h>
 #include <asm/portmux.h>
 #include <asm/mach-common/bits/dma.h>

common/cmd_otp.c

@@ -18,6 +18,7 @@
 #include <command.h>
 
 #include <asm/blackfin.h>
+#include <asm/clock.h>
 #include <asm/mach-common/bits/otp.h>
 
 static const char *otp_strerror(uint32_t err)

drivers/block/pata_bfin.c

@@ -12,6 +12,7 @@
 #include <command.h>
 #include <config.h>
 #include <asm/byteorder.h>
+#include <asm/clock.h>
 #include <asm/io.h>
 #include <asm/errno.h>
 #include <asm/portmux.h>

drivers/mmc/bfin_sdh.c

@@ -15,6 +15,7 @@
 #include <asm/errno.h>
 #include <asm/byteorder.h>
 #include <asm/blackfin.h>
+#include <asm/clock.h>
 #include <asm/portmux.h>
 #include <asm/mach-common/bits/sdh.h>
 #include <asm/mach-common/bits/dma.h>

drivers/net/bfin_mac.c

@@ -16,6 +16,7 @@
 #include <linux/mii.h>
 
 #include <asm/blackfin.h>
+#include <asm/clock.h>
 #include <asm/portmux.h>
 #include <asm/mach-common/bits/dma.h>
 #include <asm/mach-common/bits/emac.h>

drivers/usb/musb/blackfin_usb.c

@@ -11,6 +11,7 @@
 #include <usb.h>
 
 #include <asm/blackfin.h>
+#include <asm/clock.h>
 #include <asm/mach-common/bits/usb.h>
 
 #include "musb_core.h"