use flexible array in include/fuse_kernel.h
use flexible array in include/fuse_kernel.h

Use the ISO C standard compliant form instead of the gcc extension in the
interface definition.

byterom/android_external_fuse,byterom/android_external_fuse,byterom/android_external_fuse,F-AOSP/platform_external_fuse,F-AOSP/platform_external_fuse,F-AOSP/platform_external_fuse