Create a Linux preset (#11121)

### Summary
TSIA

### Test plan

CI

```
$ cmake --preset linux && cmake --build cmake-out -j $(nproc)
```

Author: jathu

.github/workflows/build-presets.yml

@@ -39,7 +39,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        preset: [pybind, llm]
+        preset: [linux, pybind, llm]
         runner: [linux.2xlarge, linux.arm64.2xlarge]
         docker-image: [executorch-ubuntu-22.04-clang12, executorch-ubuntu-22.04-gcc11-aarch64]
         # Excluding specific runner + docker image combinations that don't make sense:

CMakePresets.json

@@ -57,6 +57,20 @@
         "rhs": "Darwin"
       }
     },
+    {
+      "name": "linux",
+      "displayName": "Build everything buildable on Linux",
+      "inherits": ["common"],
+      "cacheVariables": {
+        "CMAKE_SYSTEM_NAME": "Linux",
+        "EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/linux.cmake"
+      },
+      "condition": {
+        "lhs": "${hostSystemName}",
+        "type": "equals",
+        "rhs": "Linux"
+      }
+    },
     {
       "name": "pybind",
       "displayName": "Build pybindings exported in the wheel",

tools/cmake/preset/linux.cmake

@@ -0,0 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+include(${PROJECT_SOURCE_DIR}/tools/cmake/preset/pybind.cmake)
+include(${PROJECT_SOURCE_DIR}/tools/cmake/preset/llm.cmake)
+
+set_overridable_option(EXECUTORCH_BUILD_EXECUTOR_RUNNER ON)

tools/cmake/preset/macos.cmake

@@ -6,5 +6,6 @@
 
 include(${PROJECT_SOURCE_DIR}/tools/cmake/preset/apple_common.cmake)
 include(${PROJECT_SOURCE_DIR}/tools/cmake/preset/pybind.cmake)
+include(${PROJECT_SOURCE_DIR}/tools/cmake/preset/llm.cmake)
 
 set_overridable_option(EXECUTORCH_BUILD_EXECUTOR_RUNNER ON)