m68k/atari: Do not use "/" in interrupt names

It may trigger a warning in fs/proc/generic.c:__xlate_proc_name() when
trying to add an entry for the interrupt handler to sysfs.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/atari/stdma.c b/arch/m68k/atari/stdma.c
index 604329f..ddbf43c 100644
--- a/arch/m68k/atari/stdma.c
+++ b/arch/m68k/atari/stdma.c
@@ -180,7 +180,7 @@
 {
 	stdma_isr = NULL;
 	if (request_irq(IRQ_MFP_FDC, stdma_int, IRQ_TYPE_SLOW | IRQF_SHARED,
-			"ST-DMA: floppy/ACSI/IDE/Falcon-SCSI", stdma_int))
+			"ST-DMA floppy,ACSI,IDE,Falcon-SCSI", stdma_int))
 		pr_err("Couldn't register ST-DMA interrupt\n");
 }