s390/pci: Align prototypes of zpci IO memcpy functions

The generic memcpy_{from,to}io and memset_io functions have a different
prototype than the zpci_memcpy_{from,to}io and zpci_memset_io functions.
But in driver code zpci functions are used as IO memcpy directly. So,
align their prototypes.

Signed-off-by: Julian Vetter <jvetter@kalrayinc.com>
Link: https://lore.kernel.org/r/20241010130100.710005-2-jvetter@kalrayinc.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

arch/s390/include/asm/pci_io.h

@@ -143,7 +143,7 @@ static inline int zpci_get_max_io_size(u64 src, u64 dst, int len, int max)
 
 static inline int zpci_memcpy_fromio(void *dst,
 				     const volatile void __iomem *src,
-				     unsigned long n)
+				     size_t n)
 {
 	int size, rc = 0;
 
@@ -162,7 +162,7 @@ static inline int zpci_memcpy_fromio(void *dst,
 }
 
 static inline int zpci_memcpy_toio(volatile void __iomem *dst,
-				   const void *src, unsigned long n)
+				   const void *src, size_t n)
 {
 	int size, rc = 0;
 
@@ -187,7 +187,7 @@ static inline int zpci_memcpy_toio(volatile void __iomem *dst,
 }
 
 static inline int zpci_memset_io(volatile void __iomem *dst,
-				 unsigned char val, size_t count)
+				 int val, size_t count)
 {
 	u8 *src = kmalloc(count, GFP_KERNEL);
 	int rc;