staging: ks7010: change parameter type in hostif_mib_get_request

Second parameter 'mib_attribute' in function hostif_mib_get_request
is declared as unsigned long and inside the function a cast to uint32_t
is being used. Just pass a u32 instead and avoid the casting.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>