genirq/proc: Add missing space separator back

The recent conversion of show_interrupts() to seq_put_decimal_ull_width()
caused a formatting regression as it drops a previosuly existing space
separator.

Add it back by unconditionally inserting a space after the interrupt
counts and removing the extra leading space from the chip name prints.

Fixes: f9ed1f7 ("genirq/proc: Use seq_put_decimal_ull_width() for decimal values")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: David Wang <00107082@163.com>
Link: https://lore.kernel.org/all/87zfldt5g4.ffs@tglx
Closes: https://lore.kernel.org/all/4ce18851-6e9f-bbe-8319-cc5e69fb45c@linux-m68k.org

Author: KAGA-KOKO

kernel/irq/proc.c

@@ -501,17 +501,18 @@ int show_interrupts(struct seq_file *p, void *v)
 
 		seq_put_decimal_ull_width(p, " ", cnt, 10);
 	}
+	seq_putc(p, ' ');
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
 	if (desc->irq_data.chip) {
 		if (desc->irq_data.chip->irq_print_chip)
 			desc->irq_data.chip->irq_print_chip(&desc->irq_data, p);
 		else if (desc->irq_data.chip->name)
-			seq_printf(p, " %8s", desc->irq_data.chip->name);
+			seq_printf(p, "%8s", desc->irq_data.chip->name);
 		else
-			seq_printf(p, " %8s", "-");
+			seq_printf(p, "%8s", "-");
 	} else {
-		seq_printf(p, " %8s", "None");
+		seq_printf(p, "%8s", "None");
 	}
 	if (desc->irq_data.domain)
 		seq_printf(p, " %*lu", prec, desc->irq_data.hwirq);