fanotify: include needed Linux definitions
fanotify: include needed Linux definitions

To support older Linux kernel f.e. 2.6.32.68 include all
required definitions. Copied from musl libc fanotify.h.

Reported by Thomas Petazzoni from Buildroot project.

brgl/uclibc-ng,brgl/uclibc-ng,brgl/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,wbx-github/uclibc-ng,wbx-github/uclibc-ng,kraj/uclibc-ng,kraj/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,brgl/uclibc-ng,kraj/uclibc-ng,wbx-github/uclibc-ng,kraj/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc,wbx-github/uclibc-ng,foss-for-synopsys-dwc-arc-processors/uClibc