kallsyms parser: move to src/kallsyms/

Moving to a common location as it's now shared between traced_probes and
traced_perf.

Also, change metatrace tag from TAG_FTRACE to TAG_PRODUCER, which is the
category intended for generalised producer metatracing.

Bug: 173124818
Change-Id: Ie70f01175a9741702ddddfe92eae1423179d811d
diff --git a/BUILD b/BUILD
index 0b6c279..d9c9e18 100644
--- a/BUILD
+++ b/BUILD
@@ -174,6 +174,7 @@
     srcs = [
         ":src_android_internal_headers",
         ":src_android_internal_lazy_library_loader",
+        ":src_kallsyms_kallsyms",
         ":src_perfetto_cmd_perfetto_atoms",
         ":src_traced_probes_android_log_android_log",
         ":src_traced_probes_common_common",
@@ -181,7 +182,6 @@
         ":src_traced_probes_filesystem_filesystem",
         ":src_traced_probes_ftrace_format_parser",
         ":src_traced_probes_ftrace_ftrace",
-        ":src_traced_probes_ftrace_kallsyms_kallsyms",
         ":src_traced_probes_initial_display_state_initial_display_state",
         ":src_traced_probes_metatrace_metatrace",
         ":src_traced_probes_packages_list_packages_list",
@@ -615,6 +615,17 @@
     ],
 )
 
+# GN target: //src/kallsyms:kallsyms
+filegroup(
+    name = "src_kallsyms_kallsyms",
+    srcs = [
+        "src/kallsyms/kernel_symbol_map.cc",
+        "src/kallsyms/kernel_symbol_map.h",
+        "src/kallsyms/lazy_kernel_symbolizer.cc",
+        "src/kallsyms/lazy_kernel_symbolizer.h",
+    ],
+)
+
 # GN target: //src/perfetto_cmd:perfetto_atoms
 filegroup(
     name = "src_perfetto_cmd_perfetto_atoms",
@@ -1224,17 +1235,6 @@
     ],
 )
 
-# GN target: //src/traced/probes/ftrace/kallsyms:kallsyms
-filegroup(
-    name = "src_traced_probes_ftrace_kallsyms_kallsyms",
-    srcs = [
-        "src/traced/probes/ftrace/kallsyms/kernel_symbol_map.cc",
-        "src/traced/probes/ftrace/kallsyms/kernel_symbol_map.h",
-        "src/traced/probes/ftrace/kallsyms/lazy_kernel_symbolizer.cc",
-        "src/traced/probes/ftrace/kallsyms/lazy_kernel_symbolizer.h",
-    ],
-)
-
 # GN target: //src/traced/probes/ftrace:format_parser
 filegroup(
     name = "src_traced_probes_ftrace_format_parser",