soc: raspberrypi: rp2350: Add initial support for the RP2350B

RP2350B is a rich IO variant in the RP2350 series.

Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>

soc/raspberrypi/rpi_pico/rp2350/Kconfig

@@ -18,6 +18,15 @@ config SOC_RP2350A_M33
 	select CPU_HAS_ARM_MPU
 	select CPU_HAS_ARM_SAU
 
+config SOC_RP2350B_M33
+	select ARM
+	select ARM_TRUSTZONE_M
+	select CPU_CORTEX_M_HAS_SYSTICK
+	select CPU_CORTEX_M_HAS_VTOR
+	select CPU_CORTEX_M33
+	select CPU_HAS_ARM_MPU
+	select CPU_HAS_ARM_SAU
+
 config RP2_REQUIRES_IMAGE_DEFINITION_BLOCK
 	bool
 	default y

soc/raspberrypi/rpi_pico/rp2350/Kconfig.soc

@@ -20,5 +20,16 @@ config SOC_RP2350A_M33
 	help
 	  Use the RP2350A with a Cortex-M33 core in both 'sockets'.
 
+config SOC_RP2350B
+	bool
+	select SOC_SERIES_RP2350
+
+config SOC_RP2350B_M33
+	bool
+	select SOC_RP2350B
+	help
+	  Use the RP2350B with a Cortex-M33 core in both 'sockets'.
+
 config SOC
 	default "rp2350a" if SOC_RP2350A
+	default "rp2350b" if SOC_RP2350B

soc/raspberrypi/rpi_pico/soc.yml

@@ -9,3 +9,6 @@ family:
     - name: rp2350a
       cpuclusters:
       - name: m33
+    - name: rp2350b
+      cpuclusters:
+      - name: m33