firewall: remove misplaced semicolon from stm32_firewall_get_firewall

Remove misplaced colon in stm32_firewall_get_firewall()
which results in a syntax error when the code is compiled
without CONFIG_STM32_FIREWALL.

Fixes: 5c9668c ("firewall: introduce stm32_firewall framework")
Signed-off-by: guanjing <guanjing@cmss.chinamobile.com>
Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: guanjing

include/linux/bus/stm32_firewall_device.h

@@ -115,7 +115,7 @@ void stm32_firewall_release_access_by_id(struct stm32_firewall *firewall, u32 su
 #else /* CONFIG_STM32_FIREWALL */
 
 int stm32_firewall_get_firewall(struct device_node *np, struct stm32_firewall *firewall,
-				unsigned int nb_firewall);
+				unsigned int nb_firewall)
 {
 	return -ENODEV;
 }