mpfs: Add configuration flags to configure NuttX booting on single hart

The bootloader hart also configures the needed clocks and peripherals.

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>

arch/risc-v/src/mpfs/Kconfig

@@ -13,6 +13,19 @@ config MPFS_ENABLE_DPFPU
 	---help---
 		Enable the RISC-V Double-Precision Floating Point Unit (DP-FPU).
 
+config MPFS_BOOTLOADER
+	bool "Initialize HW"
+	default n
+	---help---
+		This NuttX image is used as a bootloader, which will boot only on one hart, putting the others in WFI
+
+config MPFS_BOOT_HART
+	int "HART used for booting"
+        depends on MPFS_BOOTLOADER
+	default 0
+	---help---
+		The HART number which does the HW initialiization and wakes up the other harts (Default 0, E51 core)
+
 menu "MPFS Peripheral Support"
 
 # These "hidden" settings determine whether a peripheral option is available