[STM32F0:RTC] Renamed common files to be consistent to file naming scheme

lib/stm32/f0/Makefile

@@ -33,10 +33,10 @@ CFLAGS		= -Os -g \
 
 ARFLAGS		= rcs
 
-OBJS		= flash.o rcc.o usart.o dma.o
+OBJS		= flash.o rcc.o usart.o dma.o rtc.o
 
 OBJS            += gpio_common_all.o gpio_common_f0234.o crc_common_all.o \
-                   pwr_common_all.o iwdg_common_all.o rtc_common_bcd.o \
+                   pwr_common_all.o iwdg_common_all.o rtc_common_l1f024.o \
                    dma_common_l1f013.o
 
 VPATH += ../../usb:../:../../cm3:../common

lib/stm32/f0/rtc.c

@@ -0,0 +1,32 @@
+/** @defgroup rtc_file RTC
+ *
+ * @ingroup STM32F0xx
+ *
+ * @brief <b>libopencm3 STM32F0xx RTC</b>
+ *
+ * @version 1.0.0
+ *
+ * @date 10 July 2013
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
+
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/rtc.h>
+#include <libopencm3/stm32/common/rtc_common_l1f024.h>