spi: stm32: fix missing device mode capability in stm32mp25

The STM32MP25 SOC has capability to behave in device mode however
missing .has_device_mode within its stm32mp25_spi_cfg structure leads
to not being able to enable the device mode.

Fixes: f6cd662 ("spi: stm32: add st,stm32mp25-spi compatible supporting STM32MP25 soc")
Cc: stable@vger.kernel.org
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Link: https://patch.msgid.link/20241010-spi-mp25-device-fix-v2-1-d13920de473d@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Alain Volmat

drivers/spi/spi-stm32.c

@@ -2044,6 +2044,7 @@ static const struct stm32_spi_cfg stm32mp25_spi_cfg = {
 	.baud_rate_div_max = STM32H7_SPI_MBR_DIV_MAX,
 	.has_fifo = true,
 	.prevent_dma_burst = true,
+	.has_device_mode = true,
 };
 
 static const struct of_device_id stm32_spi_of_match[] = {