Allow entering rescue mode via recovery UI.

Only enabled on debuggable builds.

Bug: 128415917
Test: Sideload package on taimen.
Test: Choose "Enter rescue" from recovery UI.
Change-Id: I913dbdbcffd3179e6fa72ca862f74ca8f1364b02
diff --git a/minadbd/minadbd_services.cpp b/minadbd/minadbd_services.cpp
index f2b65c0..eaf88ec 100644
--- a/minadbd/minadbd_services.cpp
+++ b/minadbd/minadbd_services.cpp
@@ -45,10 +45,16 @@
 #include "sysdeps.h"
 
 static int minadbd_socket = -1;
+static bool rescue_mode = false;
+
 void SetMinadbdSocketFd(int socket_fd) {
   minadbd_socket = socket_fd;
 }
 
+void SetMinadbdRescueMode(bool rescue) {
+  rescue_mode = rescue;
+}
+
 static bool WriteCommandToFd(MinadbdCommands cmd, int fd) {
   char message[kMinadbdMessageSize];
   memcpy(message, kMinadbdCommandPrefix, strlen(kMinadbdStatusPrefix));