Add smp variables used by e1000 and remove unneeded ifdefs

+ added machine/smp.h as empty file
  + added rtems-bsd-smp.c for a few variables which were needed

freebsd-to-rtems.py

@@ -516,6 +516,7 @@ rtems_sourceFiles = [
         'src/rtems-bsd-jail.c',
 	'src/rtems-bsd-shell.c',
         'src/rtems-bsd-syscalls.c',
+        'src/rtems-bsd-smp.c',
         #'src/rtems-bsd-socket.c',
         #'src/rtems-bsd-mbuf.c',
 	'src/rtems-bsd-malloc.c',
@@ -1880,6 +1881,7 @@ mm.addEmptyFiles(
 		'machine/cpu.h',
 		'machine/elf.h',
 		'machine/sf_buf.h',
+		'machine/smp.h',
 		#'machine/vmparam.h',
 		'local/opt_ntp.h',
 		'local/pci_if.h',