Simplify config.inc and use new reference BSP

Use arm/realview_pbx_a9_qemu as the new reference BSP.  This BSP offeres
NULL pointer read/write protection and runs on the Qemu simulator.  With
this BSP it is possible to run network tests which use a virtual network
based on TAP devices.

Makefile

@@ -1,5 +1,6 @@
 include config.inc
 
+RTEMS_MAKEFILE_PATH = $(PREFIX)/$(TARGET)/$(BSP)
 include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
 include $(RTEMS_CUSTOM)
 include $(PROJECT_ROOT)/make/leaf.cfg

config.inc

@@ -1,6 +1,12 @@
-BSP = jmr3904
+# Mandatory: Select your BSP and installation prefix
-RTEMS_MAKEFILE_PATH = ${HOME}/newbsd/bsp-install/mips-rtems4.11/$(BSP)
+TARGET = arm-rtems4.11
-INSTALL_BASE = ${HOME}/newbsd/install
+BSP = realview_pbx_a9_qemu
+PREFIX = /opt/rtems-4.11
+
+# Optional: Separate installation base directory
+INSTALL_BASE = $(PREFIX)
+
+# Optional: Network test configuration
 TEST_RUNNER = $(BSP)
 NET_CFG_SELF_IP = 10.0.2.1
 NET_CFG_NETMASK = 255.255.0.0

freebsd-to-rtems.py

@@ -406,6 +406,7 @@ class ModuleManager:
 		global tempFile
 		data = 'include config.inc\n' \
 			'\n' \
+			'RTEMS_MAKEFILE_PATH = $(PREFIX)/$(TARGET)/$(BSP)\n' \
 			'include $(RTEMS_MAKEFILE_PATH)/Makefile.inc\n' \
 			'include $(RTEMS_CUSTOM)\n' \
 			'include $(PROJECT_ROOT)/make/leaf.cfg\n' \