Remove diffs of symlinks in root directory which are included in product SBOMs now.

Also explicitely ignore some diffs that were ignored because of "-I /bin".

Bug: 272358980
Test: build/soong/tests/sbom_test.sh
Change-Id: I8a19fdaa89c9f6b4a11c107df98bca647323db26
diff --git a/tests/sbom_test.sh b/tests/sbom_test.sh
index 681617a..c41f28d 100755
--- a/tests/sbom_test.sh
+++ b/tests/sbom_test.sh
@@ -88,24 +88,14 @@
   diff_excludes[vendor]="\
     -I /vendor/lib64/libkeystore2_crypto.so"
   diff_excludes[system]="\
-    -I /bin \
-    -I /bugreports \
-    -I /cache \
-    -I /d \
-    -I /etc \
-    -I /init \
-    -I /odm/app \
-    -I /odm/bin \
-    -I /odm_dlkm/etc \
-    -I /odm/etc \
-    -I /odm/firmware \
-    -I /odm/framework \
-    -I /odm/lib \
-    -I /odm/lib64 \
-    -I /odm/overlay \
-    -I /odm/priv-app \
-    -I /odm/usr \
-    -I /sdcard \
+    -I /system/bin/assemble_cvd
+    -I /system/bin/console_forwarder
+    -I /system/bin/kernel_log_monitor
+    -I /system/bin/logcat_receiver
+    -I /system/bin/mkenvimage_slim
+    -I /system/bin/run_cvd
+    -I /system/bin/simg2img
+    -I /system/bin/log_tee
     -I /system/lib64/android.hardware.confirmationui@1.0.so \
     -I /system/lib64/android.hardware.confirmationui-V1-ndk.so \
     -I /system/lib64/android.hardware.keymaster@4.1.so \
@@ -133,8 +123,7 @@
     -I /system/lib64/vndk-sp-29 \
     -I /system/lib/vndk-29 \
     -I /system/lib/vndk-sp-29 \
-    -I /system/usr/icu \
-    -I /vendor_dlkm/etc"
+    -I /system/usr/icu"
 
   # Example output of dump.erofs is as below, and the data used in the test start
   # at line 11. Column 1 is inode id, column 2 is inode type and column 3 is name.