4.19-stable patches

4.19-stable patches

added patches:
	arm64-head-avoid-over-mapping-in-map_memory.patch
	block-bfq-fix-bfq_set_next_ioprio_data.patch
	bpf-correct-slot_type-marking-logic-to-allow-more-stack-slot-sharing.patch
	bpf-fix-leakage-due-to-insufficient-speculative-store-bypass-mitigation.patch
	bpf-fix-pointer-arithmetic-mask-tightening-under-state-pruning.patch
	bpf-introduce-bpf-nospec-instruction-for-mitigating-spectre-v4.patch
	bpf-reject-indirect-var_off-stack-access-in-raw-mode.patch
	bpf-reject-indirect-var_off-stack-access-in-unpriv-mode.patch
	bpf-sanity-check-max-value-for-var_off-stack-access.patch
	bpf-support-variable-offset-stack-access-from-helpers.patch
	bpf-track-spill-fill-of-constants.patch
	bpf-verifier-allocate-idmap-scratch-in-verifier-env.patch
	bpf-verifier-per-register-parent-pointers.patch
	crypto-public_key-fix-overflow-during-implicit-conversion.patch
	dm-crypt-avoid-percpu_counter-spinlock-contention-in-crypt_page_alloc.patch
	media-rc-loopback-return-number-of-emitters-rather-than-error.patch
	media-uvc-don-t-do-dma-on-stack.patch
	power-supply-max17042-handle-fails-of-reading-status-register.patch
	selftests-bpf-fix-tests-due-to-const-spill-fill.patch
	selftests-bpf-test-variable-offset-stack-access.patch
	soc-aspeed-lpc-ctrl-fix-boundary-check-for-mmap.patch
	tools-thermal-tmon-add-cross-compiling-support.patch
	vmci-fix-null-pointer-dereference-when-unmapping-queue-pair.patch