bsps: Move libchip to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

bsps/shared/dev/rtc/icm7170_reg2.c

@@ -0,0 +1,20 @@
+/*
+ *  This file contains a typical set of register access routines which may be
+ *  used with the icm7170 chip if accesses to the chip are as follows:
+ *
+ *    + registers are accessed as bytes
+ *    + registers are on 16-bit boundaries
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#define _ICM7170_MULTIPLIER 2
+#define _ICM7170_NAME(_X) _X##_2
+#define _ICM7170_TYPE uint8_t
+
+#include "icm7170_reg.c"