[POWERPC] bootwrapper: Declare udelay() in ops.h

Declarations in various users are removed.
Signed-off-by: NScott Wood <scottwood@freescale.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/boot/mpsc.c

@@ -17,7 +17,6 @@
 #include "io.h"
 #include "ops.h"
 
-extern void udelay(long delay);
 
 #define MPSC_CHR_1		0x000c
 

arch/powerpc/boot/mv64x60_i2c.c

@@ -21,8 +21,6 @@
 #include "ops.h"
 #include "mv64x60.h"
 
-extern void udelay(long);
-
 /* Register defines */
 #define MV64x60_I2C_REG_SLAVE_ADDR			0x00
 #define MV64x60_I2C_REG_DATA				0x04

arch/powerpc/boot/ops.h

@@ -193,5 +193,6 @@ static inline void exit(void)
 	void *_platform_stack_top = _bss_stack + sizeof(_bss_stack);
 
 extern unsigned long timebase_period_ns;
+void udelay(long delay);
 
 #endif /* _PPC_BOOT_OPS_H_ */

arch/powerpc/boot/prpmc2800.c

@@ -25,8 +25,6 @@ extern char _end[];
 extern char _vmlinux_start[], _vmlinux_end[];
 extern char _dtb_start[], _dtb_end[];
 
-extern void udelay(long delay);
-
 #define KB	1024U
 #define MB	(KB*KB)
 #define GB	(KB*MB)

arch/powerpc/boot/serial.c

@@ -19,8 +19,6 @@
 #include "io.h"
 #include "ops.h"
 
-extern void udelay(long delay);
-
 static int serial_open(void)
 {
 	struct serial_console_data *scdp = console_ops.data;