drivers/base/dd.c : Remove the initial value of the global variable

The global variable driver_deferred_probe_enable has a default value of
false and does not need to be initialized to false.

Signed-off-by: lizhe <sensor1010@163.com>
Link: https://lore.kernel.org/r/20220309135418.31101-1-sensor1010@163.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>