soc: nordic: nrf54h20: define CPUFLPR core

So that FLPR core can be used.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>

soc/nordic/nrf54h/Kconfig

@@ -44,3 +44,6 @@ config SOC_NRF54H20_CPURAD
 
 config SOC_NRF54H20_CPUPPR
 	depends on RISCV_CORE_NORDIC_VPR
+
+config SOC_NRF54H20_CPUFLPR
+	depends on RISCV_CORE_NORDIC_VPR

soc/nordic/nrf54h/Kconfig.defconfig.nrf54h20_cpuflpr

@@ -0,0 +1,9 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_NRF54H20_CPUFLPR
+
+config NUM_IRQS
+	default 496
+
+endif # SOC_NRF54H20_CPUFLPR

soc/nordic/nrf54h/Kconfig.soc

@@ -27,5 +27,11 @@ config SOC_NRF54H20_CPUPPR
 	help
 	  nRF54H20 CPUPPR
 
+config SOC_NRF54H20_CPUFLPR
+	bool
+	select SOC_NRF54H20
+	help
+	  nRF54H20 CPUFLPR
+
 config SOC
 	default "nrf54h20" if SOC_NRF54H20

soc/nordic/soc.yml

@@ -32,6 +32,7 @@ family:
               - name: cpuapp
               - name: cpurad
               - name: cpuppr
+              - name: cpuflpr
       - name: nrf91
         socs:
           - name: nrf9131