variant(H5): add STM32H573I-DK support

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

Author: fpistm

README.md

@@ -166,6 +166,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 | :green_heart:  | STM32F746NG | [STM32F746G-DISCOVERY](http://www.st.com/en/evaluation-tools/32f746gdiscovery.html) | *0.1.0* |  |
 | :green_heart:  | STM32G031J6 | [STM32G0316-DISCO](https://www.st.com/en/evaluation-tools/stm32g0316-disco.html) | *1.9.0* |  |
 | :green_heart:  | STM32G431CB | [B-G431B-ESC1](https://www.st.com/en/evaluation-tools/b-g431b-esc1.html) | *2.0.0* |  |
+| :yellow_heart:  | STM32H573IIKxQ  | [STM32H573I-DK](https://www.st.com/en/evaluation-tools/stm32h573i-dk.html) | **2.6.0** |  |
 | :green_heart:  | STM32L4S5VI | [B-L4S5I-IOT01A](https://www.st.com/en/evaluation-tools/b-l4s5i-iot01a.html) | *2.0.0* | |
 | :green_heart: | STM32U585AIIxQ | [B-U585I-IOT02A](https://www.st.com/en/evaluation-tools/b-u585i-iot02a.html) | *2.1.0* |  |
 | :green_heart: | STM32WB5MMG | [STM32WB5MM-DK](https://www.st.com/en/evaluation-tools/stm32wb5mm-dk.html) | *2.1.0* |  |

boards.txt

@@ -1049,6 +1049,21 @@ Disco.menu.pnum.DISCO_G0316.build.variant=STM32G0xx/G031J(4-6)M_G041J6M
 Disco.menu.pnum.DISCO_G0316.build.cmsis_lib_gcc=arm_cortexM0l_math
 Disco.menu.pnum.DISCO_G0316.build.st_extra_flags=-D{build.product_line} {build.xSerial} -D__CORTEX_SC=0
 
+# STM32H573I-DK
+Disco.menu.pnum.STM32H573I_DK=STM32H573I-DK
+Disco.menu.pnum.STM32H573I_DK.node=DIS_H573II
+Disco.menu.pnum.STM32H573I_DK.upload.maximum_size=2097152
+Disco.menu.pnum.STM32H573I_DK.upload.maximum_data_size=655360
+Disco.menu.pnum.STM32H573I_DK.build.mcu=cortex-m33
+Disco.menu.pnum.STM32H573I_DK.build.fpu=-mfpu=fpv4-sp-d16
+Disco.menu.pnum.STM32H573I_DK.build.float-abi=-mfloat-abi=hard
+Disco.menu.pnum.STM32H573I_DK.build.board=STM32H573I_DK
+Disco.menu.pnum.STM32H573I_DK.build.series=STM32H5xx
+Disco.menu.pnum.STM32H573I_DK.build.product_line=STM32H573xx
+Disco.menu.pnum.STM32H573I_DK.build.variant=STM32H5xx/H563IIKxQ_H573IIKxQ
+Disco.menu.pnum.STM32H573I_DK.build.peripheral_pins=-DCUSTOM_PERIPHERAL_PINS
+Disco.menu.pnum.STM32H573I_DK.build.cmsis_lib_gcc=arm_ARMv8MMLlfsp_math
+
 # STM32WB5MM-DK board
 Disco.menu.pnum.STM32WB5MM_DK=STM32WB5MM-DK
 Disco.menu.pnum.STM32WB5MM_DK.node="DIS_WB5MMG"