Enable zhack to work properly with 4k sector size disks

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes #17576

module/os/linux/zfs/zfs_file_os.c

@@ -115,8 +115,9 @@ zfs_file_write(zfs_file_t *fp, const void *buf, size_t count, ssize_t *resid)
  */
 int
 zfs_file_pwrite(zfs_file_t *fp, const void *buf, size_t count, loff_t off,
-    ssize_t *resid)
+    uint8_t ashift, ssize_t *resid)
 {
+	(void) ashift;
 	ssize_t rc;
 
 	rc  = kernel_write(fp, buf, count, &off);