soc: stm32: add initial soc support for stm32mp1 family

Add the initial SoC support for the STM32MP1 family. The code was
tested on STM32MP157c, but should work on any STM32MP1XX currently
available.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>

soc/arm/st_stm32/stm32mp1/linker.ld

@@ -0,0 +1,23 @@
+/* linker.ld - Linker command/script file */
+
+/*
+ * Copyright (c) 2019 STMicroelectronics
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#include <arch/arm/cortex_m/scripts/linker.ld>
+
+SECTIONS
+    {
+
+#include <linker/rel-sections.ld>
+#ifdef CONFIG_RPROC_RSC_TABLE
+
+	SECTION_PROLOGUE(.resource_table,, SUBALIGN(4))
+	{
+		KEEP(*(.resource_table*))
+    	} GROUP_LINK_IN(ROMABLE_REGION)
+#endif
+}