[PATCH 4.9 48/61] ASoC: fsl_esai: Fix divisor calculation failure at lower ratio

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Nicolin Chen commit c656941df9bc80f7ec65b92ca73c42f8b0b62628 upstream. When the desired ratio is less than 256, the savesub (tolerance) in the calculation would become

[PATCH 4.9 48/61] ASoC: fsl_esai: Fix divisor calculation failure at lower ratio

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Nicolin Chen commit c656941df9bc80f7ec65b92ca73c42f8b0b62628 upstream. When the desired ratio is less than 256, the savesub (tolerance) in the calculation would become 0. This will then fail