usb: sl811-hcd: improve misleading indentation

gcc-11 now warns about a confusingly indented code block:

drivers/usb/host/sl811-hcd.c: In function ‘sl811h_hub_control’:
drivers/usb/host/sl811-hcd.c:1291:9: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation]
 1291 |         if (*(u16*)(buf+2))     /* only if wPortChange is interesting */
      |         ^~
drivers/usb/host/sl811-hcd.c:1295:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
 1295 |                 break;

Rewrite this to use a single if() block with the __is_defined() macro.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210322164244.827589-1-arnd@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/sl811-hcd.c

@@ -1287,9 +1287,8 @@ sl811h_hub_control(
 			goto error;
 		put_unaligned_le32(sl811->port1, buf);
 
-#ifndef	VERBOSE
-	if (*(u16*)(buf+2))	/* only if wPortChange is interesting */
-#endif
+		if (__is_defined(VERBOSE) ||
+		    *(u16*)(buf+2)) /* only if wPortChange is interesting */
 			dev_dbg(hcd->self.controller, "GetPortStatus %08x\n",
 				sl811->port1);
 		break;