configure: prefer g-variants

For awk and make, we currently check the standard names as found on
a classic GNU-userland system, and then fallback to looking for the
g-named variants as found on a *BSD system.

But it happens that the usual name might also be available on a *BSD
system, so we should first check the g-variant.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

 #!/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