Segger RTT conf: support CONFIG_SEGGER_RTT_SECTION_FIXED_ADDR

Support new CONFIG_SEGGER_RTT_SECTION_FIXED_ADDR in addition to
CONFIG_SEGGER_RTT_SECTION_DTCM.

Signed-off-by: Giancarlo Stasi <[email protected]>

Author: giansta

Config/SEGGER_RTT_Conf.h

@@ -98,6 +98,10 @@ Revision: $Rev: 21386 $
 #define SEGGER_RTT_SECTION                        ".dtcm_data"
 #endif
 
+#if defined(CONFIG_SEGGER_RTT_SECTION_FIXED_ADDR)
+#define SEGGER_RTT_SECTION                        ".rtt_buff_data"
+#endif
+
 /*********************************************************************
 *
 *       RTT memcpy configuration