SAMSUNG: serial: modify name from s5pc1xx to s5p

Because of other s5p series SoC will use these serial functions,
modify function's name and structure's name.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/include/asm/arch-s5pc1xx/uart.h b/arch/arm/include/asm/arch-s5pc1xx/uart.h
index 140dbdc..2d7ad7e 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/uart.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/uart.h
@@ -24,7 +24,7 @@
 #define __ASM_ARCH_UART_H_
 
 #ifndef __ASSEMBLY__
-struct s5pc1xx_uart {
+struct s5p_uart {
 	unsigned int	ulcon;
 	unsigned int	ucon;
 	unsigned int	ufcon;