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/board/netstal/hcu4/u-boot.lds b/board/netstal/hcu4/u-boot.lds
index 368e3a4d..d9abcd6 100644
--- a/board/netstal/hcu4/u-boot.lds
+++ b/board/netstal/hcu4/u-boot.lds
@@ -133,6 +133,7 @@
    *(.dynbss)
    *(.bss)
    *(COMMON)
+   . = ALIGN(4);
   }
   _end = . ;
   PROVIDE (end = .);
diff --git a/board/netstal/hcu5/u-boot.lds b/board/netstal/hcu5/u-boot.lds
index f857ef3..c3009bb 100644
--- a/board/netstal/hcu5/u-boot.lds
+++ b/board/netstal/hcu5/u-boot.lds
@@ -134,6 +134,7 @@
    *(.dynbss)
    *(.bss)
    *(COMMON)
+   . = ALIGN(4);
   }
 
   ppcenv_assert = ASSERT(. < 0xFFFFB000, ".bss section too big, overlaps .ppcenv section. Please update your confguration: CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_LEN and TEXT_BASE may need to be modified.");
diff --git a/board/netstal/mcu25/u-boot.lds b/board/netstal/mcu25/u-boot.lds
index 093c080..a00f570 100644
--- a/board/netstal/mcu25/u-boot.lds
+++ b/board/netstal/mcu25/u-boot.lds
@@ -133,6 +133,7 @@
    *(.dynbss)
    *(.bss)
    *(COMMON)
+   . = ALIGN(4);
   }
   _end = . ;
   PROVIDE (end = .);