staging: lustre: lustre: obdclass: linux: include <linux/*.h> instead of <asm/*.h>

This patch fixes checpatch.pl warning in linux-module.c file.
WARNING: Use #include <linux/io.h> instead of <asm/io.h>
WARNING: Use #include <linux/poll.h> instead of <asm/poll.h>
WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>