4.19-stable patches

4.19-stable patches

added patches:
	btrfs-fix-block-group-leak-when-removing-fails.patch
	btrfs-fix-partial-loss-of-prealloc-extent-past-i_size-after-fsync.patch
	btrfs-transaction-avoid-deadlock-due-to-bad-initialization-timing-of-fs_info-journal_info.patch
	drm-edid-fix-off-by-one-in-dispid-dtd-pixel-clock.patch
	drm-qxl-qxl_release-leak-in-qxl_draw_dirty_fb.patch
	drm-qxl-qxl_release-leak-in-qxl_hw_surface_alloc.patch
	drm-qxl-qxl_release-use-after-free.patch
	mmc-cqhci-avoid-false-cqhci-cqe-stuck-on-by-not-open-coding-timeout-loop.patch
	mmc-meson-mx-sdio-remove-the-broken-card_busy-op.patch
	mmc-meson-mx-sdio-set-mmc_cap_wait_while_busy.patch
	mmc-sdhci-msm-enable-host-capabilities-pertains-to-r1b-response.patch
	mmc-sdhci-pci-fix-emmc-driver-strength-for-byt-based-controllers.patch
	mmc-sdhci-xenon-fix-annoying-1.8v-regulator-warning.patch