Blackfin arch: Fix bug - Run "reboot" hangs bf518-ezbrd

[Mike Frysinger <vapier.adi@gmail.com>:
 - setup P_DEFAULT_BOOT_SPI_CS  for every arch based on
   the default bootrom behavior and convert all our boards
   to it
 - revert previous anomaly change ... bf51x is not affected
   by anomaly 05000353]

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 7f69f43..44b6c9d 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -1172,10 +1172,9 @@
  * lives here as we need to force all the GPIO states w/out going through
  * BUG() checks and such.
  */
-void bfin_gpio_reset_spi0_ssel1(void)
+void bfin_reset_boot_spi_cs(unsigned short pin)
 {
-	u16 gpio = P_IDENT(P_SPI0_SSEL1);
-
+	unsigned short gpio = P_IDENT(pin);
 	port_setup(gpio, GPIO_USAGE);
 	gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
 	AWA_DUMMY_READ(data_set);