modules: move kconfig into tree

Move Kconfig from modules to the main zephyr tree to allow depenedency
resolution.

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

modules/Kconfig.cypress

@@ -0,0 +1,9 @@
+#
+# Copyright (c) 2018 Cypress Semiconductor
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config HAS_CYPRESS_DRIVERS
+	bool
+	select HAS_CMSIS

modules/Kconfig.libmetal

@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2018 Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+menuconfig LIBMETAL
+	bool "libmetal Support"
+	help
+	  This option enables the libmetal HAL abstraction layer
+
+if LIBMETAL
+
+config LIBMETAL_SRC_PATH
+	string "libmetal library source path"
+	default "libmetal"
+	help
+	  This option specifies the path to the source for the libmetal library
+
+endif # LIBMETAL

modules/Kconfig.open-amp

@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2018 Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config OPENAMP
+	bool "OpenAMP Support"
+	select LIBMETAL
+	help
+	  This option enables the OpenAMP IPC library
+
+config OPENAMP_SRC_PATH
+	string "OpenAMP library source path"
+	default "open-amp"
+	depends on OPENAMP
+	help
+	  This option specifies the path to the source for the open-amp library

modules/Kconfig.silabs

@@ -0,0 +1,11 @@
+# Kconfig - Gecko SDK
+#
+# Copyright (c) 2017, Christian Taedcke
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config HAS_SILABS_GECKO
+	bool
+	select HAS_CMSIS
+	depends on SOC_FAMILY_EXX32