Re-land "Move odexes of non-system apps into system_other"

Previously, the patterns in SYSTEM_OTHER_ODEX_FILTER only matched
subpaths of /system. Broaden this to match /<p> as well as /system/<p>.

Because SYSTEM_OTHER_ODEX_FILTER includes system_ext and product apps,
the immediate effect of this is that the odex and vdex files of
apps on those partitions move to system_other for A/B devices.

This makes the product and system_ext partitions smaller, which
in turn makes OTAs smaller.

Bug: 141707536
Test: soong unit tests
Test: (adb shell dumpsys package com.android.stk &&
       adb shell dumpsys package com.android.quicksearchbox) | grep -i dexopt -A3;
      verify dexpreopt state is 'prebuilt' for both
Test: adb shell find /data/dalvik-cache -name '*QuickSearch*.vdex' | wc -l == 1
Test: adb shell find /data/dalvik-cache -name '*Stk*.vdex' | wc -l == 1
Change-Id: I0cf141014b9ddf32159cff47b0325d9c78b549f2

dexpreopt/dexpreopt.go

@@ -568,7 +568,8 @@ func OdexOnSystemOtherByName(name string, dexLocation string, global *GlobalConf
 	}
 
 	for _, f := range global.PatternsOnSystemOther {
-		if makefileMatch(filepath.Join(SystemPartition, f), dexLocation) {
+		// See comment of SYSTEM_OTHER_ODEX_FILTER for details on the matching.
+		if makefileMatch("/"+f, dexLocation) || makefileMatch(filepath.Join(SystemPartition, f), dexLocation) {
 			return true
 		}
 	}