ColdFire: Fix the compile issue for M52277

After commit 327474f854, the
M52277EVB_stmicro configuration fail to build. Fix it by moving
the env outside the flash and update the lds file.

Signed-off-by: Jason Jin <Jason.jin@freescale.com>

board/freescale/m52277evb/u-boot.lds

@@ -32,9 +32,6 @@ SECTIONS
     arch/m68k/cpu/mcf5227x/libmcf5227x.o	(.text*)
     arch/m68k/lib/libm68k.o		(.text*)
 
-    . = DEFINED(env_offset) ? env_offset : .;
-    common/env_embedded.o	(.text*)
-
     *(.text*)
   }
   _etext = .;