arm: soc: move arm SoCs to top-dir

Move the SoC outside of the architecture tree and put them at the same
level as boards and architectures allowing both SoCs and boards to be
maintained outside the tree.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

soc/arm/st_stm32/stm32f1/Kconfig.soc

@@ -0,0 +1,46 @@
+# Kconfig - ST Microelectronics STM32F1 MCU line
+#
+# Copyright (c) 2016 Open-RnD Sp. z o.o.
+# Copyright (c) RnDity Sp. z o.o.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+choice
+prompt "STM32F1x MCU Selection"
+depends on SOC_SERIES_STM32F1X
+
+config SOC_STM32F103XE
+	bool "STM32F103XE"
+	select SOC_STM32F10X_DENSITY_DEVICE
+
+config SOC_STM32F103XB
+	bool "STM32F103XB"
+	select SOC_STM32F10X_DENSITY_DEVICE
+
+config SOC_STM32F103X8
+	bool "STM32F103X8"
+	select SOC_STM32F10X_DENSITY_DEVICE
+
+config SOC_STM32F107XC
+	bool "STM32F107XC"
+	select SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
+
+endchoice
+
+config SOC_STM32F10X_DENSITY_DEVICE
+	bool
+	help
+	 * Low density Value line devices
+	 * Medium density Value line devices
+	 * High density Value line devices
+	 * XL-density devices Value line devices
+
+config SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE
+	bool
+	help
+	 Connectivity line devices are STM32F105xx and STM32F107xx
+	 microcontrollers.  They are intended for applications where
+	 connectivity and real-time performances are required such as
+	 industrial control, control panels for security applications, UPS or
+	 home audio.  For STM32F107xx also the Ethernet MAC is available.