ARC stable backport request for 4.4 and 4.2

[Greg KH]

On Wed, Jul 13, 2016 at 01:44:31PM -0700, Vineet Gupta wrote:
> Hi,
> 
> Could you please backport the following upstream commits for v4.4 and v4.2
> 
> 4d0cb15fccd1db9 ("ARCv2: Check for LL-SC livelock only if LLSC is enabled")
> b31ac42697bef4a ("ARCv2: LLSC: software backoff is NOT needed starting HS2.1c")

Applied to 4.4-stable, thanks.

greg k-h