6.18-stable patches

added patches:
	add-default_gfp-helper-macro-and-use-it-in-the-new-alloc_obj-helpers.patch
	default_gfp-avoid-using-the-newfangled-__va_opt__-trick.patch
	perf-trace-beauty-fcntl-fix-build-with-older-kernel-headers.patch
	slab-introduce-kmalloc_flex-and-family.patch
	slab-recognize-gfp-parameter-as-optional-in-kernel-doc.patch