Control: Add Flags interface and CMOSClear property for boot option

Summary:
- Add "Flags" interface and "CMOSClear" property
to store the CMOS clear option.

Motivate:
-Add a interface and property to store flags
related to boot options.

Test Plan:
- Build code : pass
- Tested on YV4 system - Pass

Change-Id: I5fffaf771796b084c82e75e96292ed3426421477
Signed-off-by: Zoey YJ Chung <zoey.yj.chung.wiwynn@gmail.com>
diff --git a/gen/xyz/openbmc_project/Control/Boot/Flags/meson.build b/gen/xyz/openbmc_project/Control/Boot/Flags/meson.build
new file mode 100644
index 0000000..4f2c6f2
--- /dev/null
+++ b/gen/xyz/openbmc_project/Control/Boot/Flags/meson.build
@@ -0,0 +1,40 @@
+# Generated file; do not modify.
+
+sdbusplus_current_path = 'xyz/openbmc_project/Control/Boot/Flags'
+
+generated_sources += custom_target(
+    'xyz/openbmc_project/Control/Boot/Flags__cpp'.underscorify(),
+    input: [
+        '../../../../../../yaml/xyz/openbmc_project/Control/Boot/Flags.interface.yaml',
+    ],
+    output: [
+        'common.hpp',
+        'server.hpp',
+        'server.cpp',
+        'aserver.hpp',
+        'client.hpp',
+    ],
+    depend_files: sdbusplusplus_depfiles,
+    command: [
+        sdbuspp_gen_meson_prog,
+        '--command',
+        'cpp',
+        '--output',
+        meson.current_build_dir(),
+        '--tool',
+        sdbusplusplus_prog,
+        '--directory',
+        meson.current_source_dir() / '../../../../../../yaml',
+        'xyz/openbmc_project/Control/Boot/Flags',
+    ],
+    install: should_generate_cpp,
+    install_dir: [
+        get_option('includedir') / sdbusplus_current_path,
+        get_option('includedir') / sdbusplus_current_path,
+        false,
+        get_option('includedir') / sdbusplus_current_path,
+        get_option('includedir') / sdbusplus_current_path,
+    ],
+    build_by_default: should_generate_cpp,
+)
+
diff --git a/gen/xyz/openbmc_project/Control/Boot/meson.build b/gen/xyz/openbmc_project/Control/Boot/meson.build
index dc452b7..d2b4a3a 100644
--- a/gen/xyz/openbmc_project/Control/Boot/meson.build
+++ b/gen/xyz/openbmc_project/Control/Boot/meson.build
@@ -1,4 +1,5 @@
 # Generated file; do not modify.
+subdir('Flags')
 subdir('Mode')
 subdir('RebootAttempts')
 subdir('RebootPolicy')
@@ -8,6 +9,30 @@
 sdbusplus_current_path = 'xyz/openbmc_project/Control/Boot'
 
 generated_markdown += custom_target(
+    'xyz/openbmc_project/Control/Boot/Flags__markdown'.underscorify(),
+    input: [
+        '../../../../../yaml/xyz/openbmc_project/Control/Boot/Flags.interface.yaml',
+    ],
+    output: ['Flags.md'],
+    depend_files: sdbusplusplus_depfiles,
+    command: [
+        sdbuspp_gen_meson_prog,
+        '--command',
+        'markdown',
+        '--output',
+        meson.current_build_dir(),
+        '--tool',
+        sdbusplusplus_prog,
+        '--directory',
+        meson.current_source_dir() / '../../../../../yaml',
+        'xyz/openbmc_project/Control/Boot/Flags',
+    ],
+    install: should_generate_markdown,
+    install_dir: [inst_markdown_dir / sdbusplus_current_path],
+    build_by_default: should_generate_markdown,
+)
+
+generated_markdown += custom_target(
     'xyz/openbmc_project/Control/Boot/Mode__markdown'.underscorify(),
     input: [
         '../../../../../yaml/xyz/openbmc_project/Control/Boot/Mode.interface.yaml',
diff --git a/yaml/xyz/openbmc_project/Control/Boot/Flags.interface.yaml b/yaml/xyz/openbmc_project/Control/Boot/Flags.interface.yaml
new file mode 100644
index 0000000..ae33eab
--- /dev/null
+++ b/yaml/xyz/openbmc_project/Control/Boot/Flags.interface.yaml
@@ -0,0 +1,8 @@
+description: >
+    Implement to specify boot option flags.
+
+properties:
+    - name: CMOSClear
+      type: boolean
+      description: >
+          Whether or not CMOS Clear is enabled.