dmaengine: ste_dma40: limit burst size to 16
dmaengine: ste_dma40: limit burst size to 16

The client is not aware of the maximum burst size in the dma driver.  If
the size exceeds 16 set max to 16.

Signed-off-by: Per Forlin <eef895a6d2c8ac90ff468c9f412501c535a132ff@stericsson.com>
Acked-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>
Acked-by: Vinod Koul <5cf69c63beb17bf38d63aa0e923ee8256af0e205@intel.com>
Signed-off-by: Fabio Baltieri <161d407f4dc681bfd4aedb33b8273b2aafd727bc@linaro.org>

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