blinking button patch for new kernel source

Adding configurable button blinking for notifications

idea and first impl by @tbalden
net: wireless: bcmdhd: new feature for Roaming.

	1) The functionality help to prevent the device from doing roam
	scan forever in the environment which has just one AP nearbyt,
	but the RSSI of the AP is -75dbm ~ 78dbm
	2) The feature will set the roam trigger from -75dbm to -85dbm
	in case that there are only one AP.
	3) The value will be reset to -75dbm after disconnecting from
	current AP.
	4) This patch will Fixed Google issue: [10718651]
	   WiFi draining battery life even while phone connected to charge
	5) Enable flow control in DHD driver to fix
	   10430352 UDP speed is less than 40% of TCP speed with LInksys
	   WRT110
Signed-off-by: Ecco Park <eccopark@broadcom.com>
ip: use ip_hdr() in __ip_make_skb() to retrieve IP header

skb->data already points to IP header, but for the sake of
consistency we can also use ip_hdr() to retrieve it.

Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
exfat support