variant(): add STEVAL-MKBOXPRO (SensorTile.box Pro)

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

Author: fpistm

README.md

@@ -176,6 +176,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 | Status | Device(s) | Name | Release | Notes |
 | :----: | :-------: | ---- | :-----: | :---- |
 | :green_heart:  | STM32L4R9ZI | [STEVAL-MKSBOX1V1 (SensorTile.box)](https://www.st.com/en/evaluation-tools/steval-mksbox1v1.html) | *1.7.0* |  |
+| :yellow_heart:  | STM32U585AIIxQ | [STEVAL-MKBOXPRO (SensorTile.box Pro)](https://www.st.com/en/evaluation-tools/steval-mkboxpro.html) | **2.6.0** |  |
 
 ### [STM32MP1 series coprocessor](https://www.st.com/content/st_com/en/products/microcontrollers-microprocessors/stm32-arm-cortex-mpus/stm32mp1-series.html) boards
 

boards.txt

@@ -1126,6 +1126,20 @@ Eval.menu.pnum.STEVAL_MKSBOX1V1.build.variant=STM32L4xx/L4R9Z(G-I)J_L4S9ZIJ
 Eval.menu.pnum.STEVAL_MKSBOX1V1.build.peripheral_pins=-DCUSTOM_PERIPHERAL_PINS
 Eval.menu.pnum.STEVAL_MKSBOX1V1.build.cmsis_lib_gcc=arm_cortexM4lf_math
 
+# STEVAL_MKBOXPRO board
+Eval.menu.pnum.STEVAL_MKBOXPRO=SensorTile.box Pro
+Eval.menu.pnum.STEVAL_MKBOXPRO.upload.maximum_size=2097152
+Eval.menu.pnum.STEVAL_MKBOXPRO.upload.maximum_data_size=262144
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.mcu=cortex-m33
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.fpu=-mfpu=fpv4-sp-d16
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.float-abi=-mfloat-abi=hard
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.board=STEVAL_MKBOXPRO
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.series=STM32U5xx
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.product_line=STM32U585xx
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.variant=STM32U5xx/U575A(G-I)IxQ_U585AIIxQ
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.peripheral_pins=-DCUSTOM_PERIPHERAL_PINS
+Eval.menu.pnum.STEVAL_MKBOXPRO.build.cmsis_lib_gcc=arm_ARMv8MMLlfsp_math
+
 # Upload menu
 Eval.menu.upload_method.swdMethod=STM32CubeProgrammer (SWD)
 Eval.menu.upload_method.swdMethod.upload.protocol=0