libffi: update to 3.4.7

- Drop upstreamed patches

Co-authored-by: Chen (@jiegec) <[email protected]>

Author: 2 people

runtime-common/libffi/autobuild/patches/0001-BACKPORT-MIPS-add-.note.GNU-stack-section-to-assembly-sources.patch

@@ -1,4 +1,4 @@
-VER=3.4.6
+VER=3.4.7
 SRCS="tbl::https://github.com/libffi/libffi/releases/download/v${VER}/libffi-${VER}.tar.gz"
-CHKSUMS="sha256::b0dea9df23c863a7a50e825440f3ebffabd65df1497108e5d437747843895a4e"
+CHKSUMS="sha256::138607dee268bdecf374adf9144c00e839e38541f75f24a1fcf18b78fda48b2d"
 CHKUPDATE="anitya::id=1611"