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
Merged-In: I913dbdbcffd3179e6fa72ca862f74ca8f1364b02
(cherry picked from commit c6dc325e88)

install/include/install/adb_install.h

@@ -18,4 +18,4 @@
 
 #include <recovery_ui/ui.h>
 
-int apply_from_adb(RecoveryUI* ui);
+int ApplyFromAdb(RecoveryUI* ui, bool rescue_mode);