lrdp-v2: make --64-bit the default, introduce --32-bit

Most new targets are now 64-bit.  Make --64-bit the default and add a
--32-bit option to force 32-bit parsing.

Change-Id: I8b77b9851b714a4708bcd34c563a84119900fb07

linux-ramdump-parser-v2/ramparse.py

@@ -120,7 +120,9 @@ if __name__ == '__main__':
     parser.add_option('', '--parse-qdss', action='store_true',
                       dest='qdss', help='Parse QDSS (deprecated)')
     parser.add_option('', '--64-bit', action='store_true', dest='arm64',
-                      help='Parse dumps as 64-bit dumps')
+                      help='Parse dumps as 64-bit dumps (default)')
+    parser.add_option('', '--32-bit', action='store_true', dest='arm32',
+                      help='Parse dumps as 32-bit dumps')
     parser.add_option('', '--shell', action='store_true',
                       help='Run an interactive python interpreter with the ramdump loaded')
     parser.add_option('', '--classic-shell', action='store_true',
@@ -230,6 +232,12 @@ if __name__ == '__main__':
     nm_path = options.nm
     objdump_path = options.objdump
 
+    if options.arm64:
+        print_out_str('--64-bit is deprecated. Dumps are assumed to be 64-bit by default.')
+        print_out_str('For 32-bit dumps, use --32-bit.')
+    else:
+        options.arm64 = not options.arm32
+
     try:
         import local_settings
         try: