staging: dgnc: Break line after boolean operator

The preferred way to break up long math lines is to break after an arthimetic
or boolean operator. This patch fixes the checkpatch.pl warning:
Logical continuations should be on the previous line.
Signed-off-by: Rehas Sachdeva <aquannie@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/dgnc/dgnc_tty.c

@@ -1796,8 +1796,8 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	}
 
 	/* Update printer buffer empty time. */
-	if ((un->un_type == DGNC_PRINT) && (ch->ch_digi.digi_maxcps > 0)
-	    && (ch->ch_digi.digi_bufsize > 0)) {
+	if ((un->un_type == DGNC_PRINT) && (ch->ch_digi.digi_maxcps > 0) &&
+	    (ch->ch_digi.digi_bufsize > 0)) {
 		ch->ch_cpstime += (HZ * count) / ch->ch_digi.digi_maxcps;
 	}