main/musl: upgrade to 0.9.12

...ix-Makefile-so-make-install-works-before-include-bi.patch

...2-add-stubs-for-additional-legacy-ether.h-functions.patch

main/musl/0003-add-legacy-scsi-scsi_ioctl.h-header.patch

main/musl/0004-add-legacy-sys-ttydefaults.h-header.patch

...dd-NFDBITS-in-sys-select.h-with-appropriate-feature.patch

main/musl/0006-fix-off-by-one-array-bound-in-strsignal.patch

...ix-invalid-library-phdr-pointers-passed-to-callback.patch

...dd-some-ARM-EABI-specific-exception-handling-infras.patch

main/musl/0009-add-PIE-support-for-ARM.patch

...ake-posix_spawn-and-functions-that-use-it-use-CLONE.patch

main/musl/APKBUILD