serial: zynq: Fix typo in suffix function name

's/zynq_serial_initalize/zynq_serial_initialize/g'
serial_initialize is used by all serial drivers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/serial/serial_zynq.c b/drivers/serial/serial_zynq.c
index 3ce9a27..1ff27d5 100644
--- a/drivers/serial/serial_zynq.c
+++ b/drivers/serial/serial_zynq.c
@@ -223,7 +223,7 @@
 }
 #endif
 
-void zynq_serial_initalize(void)
+void zynq_serial_initialize(void)
 {
 	serial_register(&uart_zynq_serial0_device);
 	serial_register(&uart_zynq_serial1_device);