serial: ce4100: fix build after serial_in/out() changes

This x86_32 driver remain unnoticed, so after the commit below, the
compilation now fails with:
  arch/x86/platform/ce4100/ce4100.c:107:16: error: incompatible function pointer types assigning to '...' from '...'

To fix the error, convert also ce4100 to the new
uart_port::serial_{in,out}() types.

Signed-off-by: "Jiri Slaby (SUSE)" <[email protected]>
Fixes: fc9ceb5 ("serial: 8250: sanitize uart_port::serial_{in,out}() types")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: [email protected]
Cc: "H. Peter Anvin" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Jiri Slaby (SUSE)

arch/x86/platform/ce4100/ce4100.c

@@ -49,9 +49,9 @@ static unsigned int mem_serial_in(struct uart_port *p, int offset)
  * errata number 9 in Errata - B step.
 */
 
-static unsigned int ce4100_mem_serial_in(struct uart_port *p, int offset)
+static u32 ce4100_mem_serial_in(struct uart_port *p, unsigned int offset)
 {
-	unsigned int ret, ier, lsr;
+	u32 ret, ier, lsr;
 
 	if (offset == UART_IIR) {
 		offset = offset << p->regshift;
@@ -73,7 +73,7 @@ static unsigned int ce4100_mem_serial_in(struct uart_port *p, int offset)
 	return ret;
 }
 
-static void ce4100_mem_serial_out(struct uart_port *p, int offset, int value)
+static void ce4100_mem_serial_out(struct uart_port *p, unsigned int offset, u32 value)
 {
 	offset = offset << p->regshift;
 	writel(value, p->membase + offset);