generator: Update stable anchor to 6.13

Apply commit d8b1ee6 ("generator: yml: Enable sparc64 build on
mainline") now that the requisite changes are available in this branch.

Signed-off-by: Nathan Chancellor <[email protected]>

Author: nathanchance

generator/yml/0004-trees.yml

@@ -1,7 +1,7 @@
 trees:
   - &mainline         {git_repo: *mainline-url, git_ref: master,              name: mainline}
   - &next             {git_repo: *next-url,     git_ref: master,              name: next}
-  - &stable           {git_repo: *stable-url,   git_ref: linux-6.12.y,        name: stable}
+  - &stable           {git_repo: *stable-url,   git_ref: linux-6.13.y,        name: stable}
   - &stable-6_6       {git_repo: *stable-url,   git_ref: linux-6.6.y,         name: "6.6"}
   - &stable-6_1       {git_repo: *stable-url,   git_ref: linux-6.1.y,         name: "6.1"}
   - &stable-5_15      {git_repo: *stable-url,   git_ref: linux-5.15.y,        name: "5.15"}

generator/yml/0009-llvm-tot.yml

@@ -232,6 +232,7 @@
   - {<< : *s390_kasan,        << : *stable,           << : *llvm_full,       boot: true,  << : *llvm_tot}
   - {<< : *s390_fedora,       << : *stable,           << : *llvm_full,       boot: true,  << : *llvm_tot}
   - {<< : *s390_suse,         << : *stable,           << : *llvm_full,       boot: true,  << : *llvm_tot}
+  - {<< : *sparc64,           << : *stable,           << : *clang,           boot: true,  << : *llvm_tot}
   - {<< : *um,                << : *stable,           << : *llvm_full,       boot: true,  << : *llvm_tot}
   - {<< : *x86_64,            << : *stable,           << : *llvm_full,       boot: true,  << : *llvm_tot}
   - {<< : *x86_64_lto_full,   << : *stable,           << : *llvm_full,       boot: true,  << : *llvm_tot}