Align end of bss by 4 bytes

Most of the bss initialization loop increments 4 bytes
at a time. And the loop end is checked for an 'equal'
condition. Make the bss end address aligned by 4, so
that the loop will end as expected.

Signed-off-by: Selvamuthukumar <selva.muthukumar@e-coninfotech.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/cpu/mpc5xx/u-boot.lds b/cpu/mpc5xx/u-boot.lds
index c83f155..bf52179 100644
--- a/cpu/mpc5xx/u-boot.lds
+++ b/cpu/mpc5xx/u-boot.lds
@@ -126,6 +126,7 @@
    *(.dynbss)
    *(.bss)
    *(COMMON)
+   . = ALIGN(4);
   }
 
   _end = . ;