irqdomain: Remove stray '-' in the domain name

When the domain suffix is not supplied alloc_fwnode_name() unconditionally
adds a separator.

Fix the format strings to get rid of the stray '-' separator.

Fixes: 1e7c052 ("irqdomain: Allow giving name suffix for domain")
Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/all/[email protected]

Author: andy-shev

kernel/irq/irqdomain.c

@@ -149,9 +149,9 @@ static int alloc_fwnode_name(struct irq_domain *domain, const struct fwnode_hand
 	char *name;
 
 	if (bus_token == DOMAIN_BUS_ANY)
-		name = kasprintf(GFP_KERNEL, "%pfw-%s", fwnode, suf);
+		name = kasprintf(GFP_KERNEL, "%pfw%s%s", fwnode, sep, suf);
 	else
-		name = kasprintf(GFP_KERNEL, "%pfw-%s%s%d", fwnode, suf, sep, bus_token);
+		name = kasprintf(GFP_KERNEL, "%pfw%s%s-%d", fwnode, sep, suf, bus_token);
 	if (!name)
 		return -ENOMEM;