Update golang and enable MPTCP by default

golang/golang/patches/001-cmd-link-use-gold-on-ARM-ARM64-only-if-gold-is-available.patch

@@ -1,48 +0,0 @@
-From 5ccf9f47bf4f5ba53e0ab7338a7fd4626714cfb2 Mon Sep 17 00:00:00 2001
-From: Jeffery To <jeffery.to@gmail.com>
-Date: Tue, 23 Nov 2021 15:05:37 +0800
-Subject: [PATCH] cmd/link: use gold on ARM/ARM64 only if gold is available
-
-COPY relocation handling on ARM/ARM64 has been fixed in recent versions
-of the GNU linker. This switches to gold only if gold is available.
-
-Fixes #22040.
----
- src/cmd/link/internal/ld/lib.go | 19 +++++++------------
- 1 file changed, 7 insertions(+), 12 deletions(-)
-
---- a/src/cmd/link/internal/ld/lib.go
-+++ b/src/cmd/link/internal/ld/lib.go
-@@ -1535,25 +1535,20 @@ func (ctxt *Link) hostlink() {
- 		}
- 
- 		if ctxt.Arch.InFamily(sys.ARM, sys.ARM64) && buildcfg.GOOS == "linux" {
--			// On ARM, the GNU linker will generate COPY relocations
--			// even with -znocopyreloc set.
-+			// On ARM, older versions of the GNU linker will generate
-+			// COPY relocations even with -znocopyreloc set.
- 			// https://sourceware.org/bugzilla/show_bug.cgi?id=19962
- 			//
--			// On ARM64, the GNU linker will fail instead of
--			// generating COPY relocations.
-+			// On ARM64, older versions of the GNU linker will fail
-+			// instead of generating COPY relocations.
- 			//
--			// In both cases, switch to gold.
--			altLinker = "gold"
--
--			// If gold is not installed, gcc will silently switch
--			// back to ld.bfd. So we parse the version information
--			// and provide a useful error if gold is missing.
-+			// In both cases, switch to gold if gold is available.
- 			name, args := flagExtld[0], flagExtld[1:]
- 			args = append(args, "-fuse-ld=gold", "-Wl,--version")
- 			cmd := exec.Command(name, args...)
- 			if out, err := cmd.CombinedOutput(); err == nil {
--				if !bytes.Contains(out, []byte("GNU gold")) {
--					log.Fatalf("ARM external linker must be gold (issue #15696), but is not: %s", out)
-+				if bytes.Contains(out, []byte("GNU gold")) {
-+					altLinker = "gold"
- 				}
- 			}
- 		}

golang/golang/patches/001-default-enable-mptcp.patch

@@ -0,0 +1,11 @@
+--- a/src/net/dial.go	2023-05-06 10:33:54.275030044 +0200
++++ b/src/net/dial.go	2023-05-06 10:34:29.218440686 +0200
+@@ -18,7 +18,7 @@
+ 
+ 	// For the moment, MultiPath TCP is not used by default
+ 	// See go.dev/issue/56539
+-	defaultMPTCPEnabled = false
++	defaultMPTCPEnabled = true
+ )
+ 
+ // mptcpStatus is a tristate for Multipath TCP, see go.dev/issue/56539