Steps to reproduce:
1) Download attached project ' AnisotropingFilteringIssue.zip' and open in Unity
3) Build and run 'BugTestScene' on a device
4) Compare 2 attached images from different devices

For device with ARM GPU Anisotropic filtering renders blurry , while Adreno GPU works(check reduced blur)

Actual result: note that the image is rendered blurry starting about half way in the road image

Expected result: the whole image should be rendered without blur effect

Reproduced with:
5.3.7p2, 5.4.4p1, 5.5.0b1, 5.5.0p4, 5.6.0b3

DUT:
Reproduced with:
Samsung Galaxy S6 Edge[SM-G925F], ARM Mali-T760MP8, OS version 6.0.1
Samsung Galaxy S7[SM-G930F], ARM Mali-T880, OS version 6.0.1
Samsung Galaxy S7 Edge[SM-G935F], ARM Mali-T880, OS version 6.0.1

Not reproduced with:
Samsung Galaxy S7[SM-G930V], Adreno 530, OS version 6.0.1

Resolved as by design because ARM Mali GPUs doesn't support anisotropic filtering (GL_EXT_TEXTURE_FILTER_ANISOTROPIC)