dev-util/ostree: add patch to fix musl build

Closes: https://bugs.gentoo.org/879321
Signed-off-by: Zac Medico <zmedico@gentoo.org>

dev-util/ostree/files/ostree-2022.6-musl-allperms.patch

@@ -0,0 +1,17 @@
+https://bugs.gentoo.org/879321
+
+From: ernsteiswuerfel <erhard_f@mailbox.org>
+
+--- a/src/libostree/ostree-repo-checkout.c
++++ b/src/libostree/ostree-repo-checkout.c
+@@ -37,6 +37,10 @@
+ 
+ #define OVERLAYFS_WHITEOUT_PREFIX ".ostree-wh."
+ 
++#if !defined(ALLPERMS)
++# define ALLPERMS (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO) /* 07777 */
++#endif
++
+ /* Per-checkout call state/caching */
+ typedef struct {
+   GString *path_buf; /* buffer for real path if filtering enabled */

dev-util/ostree/ostree-2022.6.ebuild

@@ -63,6 +63,10 @@ BDEPEND="
 
 S="${WORKDIR}/lib${P}"
 
+PATCHES=(
+	"${FILESDIR}"/${P}-musl-allperms.patch
+)
+
 src_prepare() {
 	default