library: spi: add STM32U5xx support

use register definition instead of serie name

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

libraries/SPI/src/utility/spi_com.h

@@ -56,7 +56,7 @@ struct spi_s {
   PinName pin_mosi;
   PinName pin_sclk;
   PinName pin_ssel;
-#if defined(STM32H7xx) || defined(STM32MP1xx)
+#if defined(SPI_IFCR_EOTC)
   // Delay before disabling SPI.
   // See https://github.com/stm32duino/Arduino_Core_STM32/issues/1294
   uint32_t disable_delay;