Misc fixes predominantly for musl

upgrade musl past 1.1.18 release
fix armv5 codegen issue seen with gcc7 while compiling kernel fix systemd for musl/64-bit
make binutils SRC_URI overridable
Fix go with PIE/musl

The following changes since commit 3717c76eb24217c14a22f72fdd8732923729dee8:

gcc: fix miscompilation on mips64 (2017-11-08 22:23:45 +0000)

are available in the Git repository at:

git://git.openembedded.org/openembedded-core-contrib kraj/pu
http://cgit.openembedded.org/openembedded-core-contrib/log/?h=kraj/pu

Khem Raj (5):
binutils: Convert SRC_URI and SRCREV to weak defines
go: Fix build with PIE on musl
systemd: Fix build with musl/mips64
musl: Update to 1.1.18
gcc7/gcc6: Fix unaligned STRD issue on ARM

 meta/recipes-core/musl/musl_git.bb                 |   4 +-
 .../0001-Use-uintmax_t-for-handling-rlim_t.patch   |  89 ++++++++++
 meta/recipes-core/systemd/systemd_234.bb           |   1 +
 meta/recipes-devtools/binutils/binutils-2.29.inc   |   5 +-
 meta/recipes-devtools/gcc/gcc-6.4.inc              |   1 +
 ...5-suppress-32-bit-aligned-ldrd-strd-peeph.patch | 194 +++++++++++++++++++++
 meta/recipes-devtools/gcc/gcc-7.2.inc              |   1 +
 ...5-suppress-32-bit-aligned-ldrd-strd-peeph.patch | 194 +++++++++++++++++++++
 meta/recipes-devtools/go/go-1.9.inc                |   3 +
 .../go/go-1.9/default-buildmode-pie.patch          |  18 ++
 .../go/go-1.9/set-external-linker.patch            | 111 ++++++++++++
 11 files changed, 617 insertions(+), 4 deletions(-)
 create mode 100644 meta/recipes-core/systemd/systemd/0001-Use-uintmax_t-for-handling-rlim_t.patch
 create mode 100644 meta/recipes-devtools/gcc/gcc-6.4/0057-ARM-PR-82445-suppress-32-bit-aligned-ldrd-strd-peeph.patch
 create mode 100644 meta/recipes-devtools/gcc/gcc-7.2/0051-ARM-PR-82445-suppress-32-bit-aligned-ldrd-strd-peeph.patch
 create mode 100644 meta/recipes-devtools/go/go-1.9/default-buildmode-pie.patch
 create mode 100644 meta/recipes-devtools/go/go-1.9/set-external-linker.patch

2.15.0