Rebase to upstream version 6.3.0

Following is a list of dropped backported patches which are contained in the current rebase: xfsprogs-5.19.0-xfs-hoist-refcount-record-merge-predicates.patch (v6.2.0) xfsprogs-5.19.0-xfs_db-fix-dir3-block-magic-check.patch (v6.1.0) xfsprogs-5.19.0-xfs-estimate-post-merge-refcounts-correctly.patch (v6.2.0) xfsprogs-5.19.0-xfs-get-rid-of-assert-from-xfs_btree_islastblock.patch (v6.2.0) xfsprogs-5.19.0-xfs-fix-off-by-one-error-in-xfs_btree_space_to_heigh.patch (v6.2.0) xfsprogs-5.19.0-xfs-fix-sb-write-verify-for-lazysbcount.patch (v6.1.0) xfsprogs-5.19.0-xfs-removed-useless-condition-in-function-xfs_attr_n.patch (v6.0.0) xfsprogs-5.19.0-xfs_repair-retain-superblock-buffer-to-avoid-write-h.patch (v6.1.0)

Rename the remaining patches so the name contains upstream version in which they are implemented, or "rhelonly".

Drop Eric Sandeen's public key used to check tarball signature and replace it by Carlos Maiolino's (current upstream xfsprogs maintainer).

Following is a list of newly backported patches from versions released after 6.3 which are fixing patches present in version 6.3: xfsprogs-6.4.0-xfs_repair-don-t-add-junked-entries-to-the-rebuilt-d.patch xfsprogs-6.4.0-xfs_repair-don-t-spray-correcting-imap-all-by-itself.patch xfsprogs-6.4.0-xfs_repair-fix-messaging-when-fixing-imap-due-to-spa.patch xfsprogs-6.4.0-xfs_repair-fix-messaging-when-shortform_dir2_junk-is.patch

Backport: xfsprogs-6.4.0-xfs_db-move-obfuscate_name-assertion-to-callers.patch xfsprogs-6.4.0-xfs_db-fix-metadump-name-obfuscation-for-ascii-ci-fi.patch xfsprogs-6.4.0-xfs-stabilize-the-dirent-name-transformation-functio.patch to implement RHEL-RHEL-8284

Backport xfsprogs-rhelonly-xfs_quota-fix-missing-mount-point-warning.patch to implement RHEL-7900

Resolves: RHEL-15399
Resolves: RHEL-8284
Resolves: RHEL-7900

Signed-off-by: Pavel Reichl <preichl@redhat.com>