Add GD32L233R-EVAL board support

[cameled]

GD32L233R-EVAL board based on Coretex M23 MCU(include System Timer).

[zephyrbot]

The following west manifest projects have been modified in this Pull Request:

Name	Old Revision	New Revision	Diff
hal_gigadevice	zephyrproject-rtos/hal_gigadevice@dd0e032	zephyrproject-rtos/hal_gigadevice@024ed9e (main)	zephyrproject-rtos/hal_gigadevice@dd0e0322..024ed9e3

Note: This message is automatically posted and updated by the Manifest GitHub Action.

[cameled]

ci failure caused by others.

[carlescufi]

@cameled please rebase

[nandojve]

Fix commit message:

-soc: arm: gigadeivce: add gd32l23x series
+soc: arm: gigadevice: add gd32l23x series

[cameled]

Fix commit message:

-soc: arm: gigadeivce: add gd32l23x series
+soc: arm: gigadevice: add gd32l23x series

Thanks! I add a step to check the commit message spelling.

[cameled]

A boundary test for SRAM0(16K) and SRAM1(16K).

If I write uint16_t low byte to SRAM0 and high byte to SRAM1, it works too.

#include <zephyr/kernel.h>

static K_THREAD_STACK_DEFINE(m_stack, KB(20));
static struct k_thread m_thread_data;

static void thread_handler(void)
{
	uint8_t data[KB(16)];
	uint8_t *addr1 = &data[KB(11) + 0x147];
	uint8_t *addr2 = &data[KB(11) + 0x148];
	uint16_t *addr3 = (uint16_t *)&data[KB(11) + 0x147];

	printk("addr1: %p\n", addr1);
	printk("addr2: %p\n", addr2);
	printk("addr3: %p\n", addr3);

	*addr3 = 0xFF00;
	printk("*addr1: 0x%02x\n", *addr1);
	printk("*addr2: 0x%02x\n", *addr2);
}

void main(void)
{
	k_thread_create(&m_thread_data, m_stack,
			K_THREAD_STACK_SIZEOF(m_stack),
			(k_thread_entry_t)thread_handler,
			NULL, NULL, NULL, K_PRIO_PREEMPT(8), 0, K_NO_WAIT);
}

Output:

addr1: 0x20003fff
addr2: 0x20004000
addr3: 0x20003fff
*addr1: 0x00
*addr2: 0xff