mlx4_en: Added missing iounmap upon releasing a device
mlx4_en: Added missing iounmap upon releasing a device

Fixed a memory leak caused by missing iounmap when device
is being released.

Signed-off-by: Alexander Guller <59ce0f63e40328cff03fa578b2b98f47829af4e6@mellanox.co.il>
Signed-off-by: Sharon Cohen <a9ad7bbfa6e91ff846385e81c9a9bbb501a566f3@mellanox.co.il>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas