libc/eglibc: normalize eglibc hidden version names

In the previous patches to glibc and uclibc, we standardized on hidden
version names:

LIBC_<LIBC NAME>_V_<VERSION>

This patch updates EGLIBC to be the same for consistency to:

LIBC_EGLIBC_V_<VERSION>

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

 #!/bin/sh

 # Needed for systems without gettext

 $* -xc -o /dev/null - > /dev/null 2>&1 << EOF

 #include <libintl.h>

 int main()

 {

 	gettext("");

 	return 0;

 }

 EOF

 if [ ! "$?" -eq "0"  ]; then

 	echo -DKBUILD_NO_NLS;

 fi