Replace "sys.fuse_snapshot" with "persist.sys.fuse"

With the newly added flag for Settings developer options, which is now
used to change the state of FUSE, PROP_FUSE now acts as the snapshot
feature flag for the current boot.

Bug: 145391093
Test: atest AdoptableHostTest
Change-Id: I22363b088e88c764294cbd61c6d94160c907fae3
diff --git a/VolumeManager.cpp b/VolumeManager.cpp
index f1cd232..8b9c29c 100644
--- a/VolumeManager.cpp
+++ b/VolumeManager.cpp
@@ -374,7 +374,7 @@
 }
 
 int VolumeManager::linkPrimary(userid_t userId) {
-    if (!GetBoolProperty(android::vold::kPropFuseSnapshot, false)) {
+    if (!GetBoolProperty(android::vold::kPropFuse, false)) {
         std::string source(mPrimary->getPath());
         if (mPrimary->isEmulated()) {
             source = StringPrintf("%s/%d", source.c_str(), userId);
@@ -468,7 +468,7 @@
         createEmulatedVolumesForUser(userId);
     }
 
-    if (!GetBoolProperty(android::vold::kPropFuseSnapshot, false)) {
+    if (!GetBoolProperty(android::vold::kPropFuse, false)) {
         // Note that sometimes the system will spin up processes from Zygote
         // before actually starting the user, so we're okay if Zygote
         // already created this directory.
@@ -563,7 +563,7 @@
 }
 
 int VolumeManager::remountUid(uid_t uid, int32_t mountMode) {
-    if (GetBoolProperty(android::vold::kPropFuseSnapshot, false)) {
+    if (GetBoolProperty(android::vold::kPropFuse, false)) {
         // TODO(135341433): Implement fuse specific logic.
         return 0;
     }