If a file is from a soong module it doesn't need the is_platform_generated flag in compliance metadata

In soong-only build most of these platform-generated files have been converted to soong modules so the flag is_platform_generated is not needed any more

Bug: 324465531
Test: build/soong/tests/sbom_test.sh
Change-Id: I7d1d79a73d4c55262c1d351d989b6cb7e768affb
diff --git a/core/main.mk b/core/main.mk
index 9710dc8..cc00b93 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -1896,7 +1896,7 @@
 	  $(eval _is_partition_compat_symlink := $(if $(findstring $f,$(PARTITION_COMPAT_SYMLINKS)),Y)) \
 	  $(eval _is_flags_file := $(if $(findstring $f, $(ALL_FLAGS_FILES)),Y)) \
 	  $(eval _is_rootdir_symlink := $(if $(findstring $f, $(ALL_ROOTDIR_SYMLINKS)),Y)) \
-	  $(eval _is_platform_generated := $(_is_build_prop)$(_is_notice_file)$(_is_product_system_other_avbkey)$(_is_event_log_tags_file)$(_is_system_other_odex_marker)$(_is_kernel_modules_blocklist)$(_is_fsverity_build_manifest_apk)$(_is_linker_config)$(_is_partition_compat_symlink)$(_is_flags_file)$(_is_rootdir_symlink)) \
+	  $(eval _is_platform_generated := $(if $(_is_soong_module),,$(_is_build_prop)$(_is_notice_file)$(_is_product_system_other_avbkey)$(_is_event_log_tags_file)$(_is_system_other_odex_marker)$(_is_kernel_modules_blocklist)$(_is_fsverity_build_manifest_apk)$(_is_linker_config)$(_is_partition_compat_symlink)$(_is_flags_file)$(_is_rootdir_symlink))) \
 	  $(eval _static_libs := $(if $(_is_soong_module),,$(ALL_INSTALLED_FILES.$f.STATIC_LIBRARIES))) \
 	  $(eval _whole_static_libs := $(if $(_is_soong_module),,$(ALL_INSTALLED_FILES.$f.WHOLE_STATIC_LIBRARIES))) \
 	  $(eval _license_text := $(if $(filter $(_build_output_path),$(ALL_NON_MODULES)),$(ALL_NON_MODULES.$(_build_output_path).NOTICES),\