CL/Driver/HSW: Convert L3 cycle for texture to uncachable.
CL/Driver/HSW: Convert L3 cycle for texture to uncachable.

This is to workaround a bug we found with darktable. After this patch,
darktable could work fine on HSW. And based on the test result, most
of the benchmarks haven't been affected much by this patch.

Signed-off-by: Zhigang Gong <e04a7b9b70b1e4c6318cf117dcd1a9056e14b97a@intel.com>
Tested-by: "Meng, Mengmeng" <c9e0ecea92e14a35e72e26c7583f18422f51dcc3@intel.com>

wdv4758h/beignet,freedesktop-unofficial-mirror/beignet,freedesktop-unofficial-mirror/beignet,wdv4758h/beignet,zhenyw/beignet,freedesktop-unofficial-mirror/beignet,zhenyw/beignet,zhenyw/beignet,wdv4758h/beignet,freedesktop-unofficial-mirror/beignet,wdv4758h/beignet,wdv4758h/beignet,zhenyw/beignet,zhenyw/beignet