feat: enable dynamic interrupt connection in unoq

This commit enables dynamic interrupt connection for the Arduino UNO Q variant.

- Export interrupt management, query, and control symbols in llext_exports.c
- Enable CONFIG_DYNAMIC_INTERRUPTS and related Kconfig options in the board config
- Disable CONFIG_DYNAMIC_INTERRUPTS for the Portenta C33 variant since there is no implementation for it yet

This allows Arduino sketches to dynamically attach and detach interrupt handlers at runtime.

Author: mirinae3145

loader/llext_exports.c

@@ -389,3 +389,14 @@ FORCE_EXPORT_SYM(fs_unregister);
 #if defined(CONFIG_CAN)
 FORCE_EXPORT_SYM(can_add_rx_filter);
 #endif
+
+#if defined(CONFIG_DYNAMIC_INTERRUPTS)
+EXPORT_SYMBOL(arch_irq_connect_dynamic);
+EXPORT_SYMBOL(arch_irq_disconnect_dynamic);
+EXPORT_SYMBOL(k_is_in_isr);
+EXPORT_SYMBOL(k_is_preempt_thread);
+EXPORT_SYMBOL(arm_irq_enable);
+EXPORT_SYMBOL(arm_irq_disable);
+EXPORT_SYMBOL(arm_irq_is_enabled);
+EXPORT_SYMBOL(arm_irq_priority_set);
+#endif

variants/arduino_portenta_c33_r7fa6m5bh3cfc/arduino_portenta_c33_r7fa6m5bh3cfc.conf

@@ -126,3 +126,5 @@ CONFIG_FS_FATFS_MAX_SS=4096
 CONFIG_FS_FATFS_MAX_LFN=255
 CONFIG_FS_FATFS_FSTAB_AUTOMOUNT=y
 CONFIG_FS_FATFS_CUSTOM_MOUNT_POINTS="wlan,ota"
+
+CONFIG_DYNAMIC_INTERRUPTS=n

variants/arduino_uno_q_stm32u585xx/arduino_uno_q_stm32u585xx.conf

@@ -48,3 +48,7 @@ CONFIG_MAIN_THREAD_PRIORITY=5
 #CONFIG_VIDEO_BUFFER_POOL_SZ_MAX=200000
 #CONFIG_VIDEO_BUFFER_POOL_ALIGN=32
 #CONFIG_VIDEO_GC2145=y
+
+CONFIG_DYNAMIC_INTERRUPTS=y
+CONFIG_GEN_ISR_TABLES=y
+CONFIG_SHARED_INTERRUPTS=y