arm/raspberrypi: ensure that correct RPI_PERIPHERAL_BASE is provided by raspberrypi.h

If the raspberrypi.h has been included without preceding inclussion
of bsp.h then BSP_IS_RPI2 has not been set for Raspberry Pi 2
BSP variant and bad things happen later.

The patch includes bspopts.h by raspberrypi.h and even includes
bsp.h in critical peripherals support.

c/src/lib/libbsp/arm/raspberrypi/gpio/rpi-gpio.c

@@ -14,6 +14,7 @@
  *  http://www.rtems.org/license/LICENSE.
  */
 
+#include <bsp.h>
 #include <bsp/raspberrypi.h>
 #include <bsp/irq-generic.h>
 #include <bsp/gpio.h>

c/src/lib/libbsp/arm/raspberrypi/include/raspberrypi.h

@@ -21,6 +21,7 @@
 #ifndef LIBBSP_ARM_RASPBERRYPI_RASPBERRYPI_H
 #define LIBBSP_ARM_RASPBERRYPI_RASPBERRYPI_H
 
+#include <bspopts.h>
 #include <stdint.h>
 #include <bsp/utility.h>
 

c/src/lib/libbsp/arm/raspberrypi/misc/mailbox.c

@@ -17,6 +17,7 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include <bsp.h>
 #include <bsp/raspberrypi.h>
 #include <bsp/mailbox.h>
 

c/src/lib/libbsp/arm/raspberrypi/misc/timer.c

@@ -16,6 +16,7 @@
  *
  */
 
+#include <bsp.h>
 #include <rtems.h>
 #include <rtems/btimer.h>
 #include <bsp/raspberrypi.h>