coldfire: eb_cpu5282: fix: boot from internal flash

* By a sequence of unfavorable conditions in the config header file, the eb_cpu5282
  booting from  internal stopped after relocation. Blame it is a faulty value of
  CONFIG_SYS_MONITOR_BASE. This patch fix this by replace the wrong condition in
  config header with option in board.cfg

Signed-off-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
diff --git a/boards.cfg b/boards.cfg
index 35f38f3..a7cdf6c 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -373,8 +373,8 @@
 M5235EVB_Flash32             m68k        mcf523x     m5235evb            freescale      -           M5235EVB:NORFLASH_PS32BIT,SYS_TEXT_BASE=0xFFC00000
 cobra5272                    m68k        mcf52x2     cobra5272           -
 idmr                         m68k        mcf52x2
-eb_cpu5282                   m68k        mcf52x2     eb_cpu5282          BuS            -           eb_cpu5282:SYS_TEXT_BASE=0xFF000000
-eb_cpu5282_internal          m68k        mcf52x2     eb_cpu5282          BuS            -           eb_cpu5282:SYS_TEXT_BASE=0xF0000000
+eb_cpu5282                   m68k        mcf52x2     eb_cpu5282          BuS            -           eb_cpu5282:SYS_TEXT_BASE=0xFF000000,SYS_MONITOR_BASE=0xFF000400
+eb_cpu5282_internal          m68k        mcf52x2     eb_cpu5282          BuS            -           eb_cpu5282:SYS_TEXT_BASE=0xF0000000,SYS_MONITOR_BASE=0xF0000418
 TASREG                       m68k        mcf52x2     tasreg              esd
 M5208EVBE                    m68k        mcf52x2     m5208evbe           freescale
 M5249EVB                     m68k        mcf52x2     m5249evb            freescale