More updates to bcm63xx

Hi Ralf,

Yet another list of cleanup and fixes for the bcm63xx tree, please
fold them into the existing patches.

Thanks !

Follow-Ups:
- Re: More updates to bcm63xx
  - From: Ralf Baechle
- [PATCH 7/8] bcm63xx: fix bcm63xx_pcmcia device removal.
  - From: Maxime Bizon
- [PATCH 5/8] bcm63xx: request gpio before using it in bcm63xx_pcmcia.
  - From: Maxime Bizon
- [PATCH 2/8] bcm63xx: register correct number of gpio for 6358.
  - From: Maxime Bizon
- [PATCH 1/8] bcm63xx: register gpiochip in prom
  - From: Maxime Bizon
- [PATCH 3/8] bcm63xx: fix gpio set.
  - From: Maxime Bizon
- [PATCH 4/8] bcm63xx: restore spinlock in gpio.
  - From: Maxime Bizon
- [PATCH 8/8] bcm63xx: fix oops when removing bcm63xx_enet module.
  - From: Maxime Bizon
- [PATCH 6/8] bcm63xx: add missing null entry in bcm63xx_pcmcia pci device table.
  - From: Maxime Bizon