[PATCH] 2.6.12-rc1-mm3 Fix ver_linux script for no udev utils.

Without the attached patch, the ver_linux script gives
the following if udev utils are not present.

./scripts/ver_linux: line 90: udevinfo: command not found

The patch causes ver_linux to be silent in the case of
no udevinfo command.

Signed-off-by: Steven Cole <elenstev@mesatop.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>