serial: bfin: Adjust serial_register_bfin_uart()

Rename the serial_register_bfin_uart() to bfin_initialize_serial()
to be consistent with the rest of the naming. Next, remove it's
prototype from serial.h and properly insert it into serial.c as
the rest of the serial initialization functions.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/cpu/serial.c

@@ -272,7 +272,7 @@ __weak struct serial_device *default_serial_console(void)
 #endif
 }
 
-void serial_register_bfin_uart(void)
+void bfin_serial_initialize(void)
 {
 #ifdef UART0_DLL
 	serial_register(&bfin_serial0_device);

common/serial.c

@@ -46,6 +46,7 @@ serial_initfunc(pxa_serial_initialize);
 serial_initfunc(s3c24xx_serial_initialize);
 serial_initfunc(s5p_serial_initialize);
 serial_initfunc(zynq_serial_initalize);
+serial_initfunc(bfin_serial_initialize);
 serial_initfunc(mpc512x_serial_initialize);
 serial_initfunc(uartlite_serial_initialize);
 
@@ -72,9 +73,7 @@ void serial_initialize(void)
 	s3c24xx_serial_initialize();
 	s5p_serial_initialize();
 	mpc512x_serial_initialize();
-#if defined(CONFIG_SYS_BFIN_UART)
-	serial_register_bfin_uart();
-#endif
+	bfin_serial_initialize();
 	uartlite_serial_initialize();
 	zynq_serial_initalize();
 	serial_assign(default_serial_console()->name);

include/serial.h

@@ -46,10 +46,6 @@ extern struct serial_device zoom2_serial_device2;
 extern struct serial_device zoom2_serial_device3;
 #endif
 
-#if defined(CONFIG_SYS_BFIN_UART)
-extern void serial_register_bfin_uart(void);
-#endif
-
 extern void serial_register(struct serial_device *);
 extern void serial_initialize(void);
 extern void serial_stdio_init(void);