Moving nvic code to common, adding F1 and F2 specific user interrupt definition headers.

lib/stm32_common/nvic.c

@@ -17,7 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <libopencm3/stm32/f1/nvic.h>
+#include <libopencm3/stm32/nvic.h>
 
 void nvic_enable_irq(u8 irqn)
 {

lib/stm32f2/Makefile

@@ -28,7 +28,7 @@ CFLAGS		= -Os -g -Wall -Wextra -I../../include -fno-common \
 		  -ffunction-sections -fdata-sections -MD -DSTM32F2
 # ARFLAGS	= rcsv
 ARFLAGS		= rcs
-OBJS		= vector.o gpio.o systick.o i2c.o spi.o
+OBJS		= vector.o gpio.o systick.o i2c.o spi.o nvic.o
 
 #VPATH += ../usb
 VPATH += ../stm32_common