vt: keyboard, use bool for rep

rep is used as a bool in the code, so declare it as such.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20201029113222.32640-9-jslaby@suse.czSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/vt/keyboard.c

@@ -144,7 +144,7 @@ static bool npadch_active;
 static unsigned int npadch_value;
 
 static unsigned int diacr;
-static char rep;					/* flag telling character repeat */
+static bool rep;			/* flag telling character repeat */
 
 static int shift_state = 0;