icjx: use iC-JX interrupt config instead of the general one

There might be multiple expanders, one with interrupt used and other
without. This commit fixes initial incorrect interrupt design by
introducing ICJX_INT_ENABLE config option.

Also fixes naming of ICJX_MULTIPLE option.

Signed-off-by: Michal Lenc <michallenc@seznam.cz>

drivers/ioexpander/Kconfig

@@ -66,12 +66,19 @@ config IOEXPANDER_ICJX
 
 if IOEXPANDER_ICJX
 
-config iC-JX_MULTIPLE
+config ICJX_MULTIPLE
 	bool "Multiple iC-JX Devices"
 	default n
 	---help---
 		Can be defined to support multiple iC-JX devices on board.
 
+config ICJX_INT_ENABLE
+	bool "Enable iC-JX Interrupt Support"
+	default n
+	select IOEXPANDER_INT_ENABLE
+	---help---
+		Enable driver interrupt functionality
+
 endif # IOEXPANDER_ICJX
 
 config IOEXPANDER_ISO1H812G

drivers/ioexpander/icjx.c

@@ -939,10 +939,10 @@ static int icjx_detach(FAR struct ioexpander_dev_s *dev, FAR void *handle)
  *
  ****************************************************************************/
 
+#ifdef CONFIG_ICJX_INT_ENABLE
 static void icjx_interrupt_worker(void *arg)
 {
   FAR struct icjx_dev_s *priv = (FAR struct icjx_dev_s *)arg;
-  uint8_t regaddr;
   uint16_t change_of_input;
   uint16_t isr;
   ioe_pinset_t irq_match;
@@ -1001,7 +1001,8 @@ static int icjx_interrupt(int irq, FAR void *context, FAR void *arg)
   return OK;
 }
 
-#endif
+#endif /* CONFIG_ICJX_INT_ENABLE */
+#endif /* CONFIG_IOEXPANDER_INT_ENABLE */
 
 /****************************************************************************
  * Public Functions