event: Allow multiple spy declarations for each event

At present only one spy is allowed per event. Update the naming to allow
more than one, since some need this flexibility, e.g. the EVT_FT_FIXUP
event.

Signed-off-by: Simon Glass <sjg@chromium.org>

scripts/event_dump.py

@@ -17,8 +17,10 @@ sys.path.insert(1, os.path.join(our_path, '../tools'))
 from binman import elf
 from patman import tools
 
+# A typical symbol looks like this:
+#   _u_boot_list_2_evspy_info_2_EVT_MISC_INIT_F_3_sandbox_misc_init_f
 PREFIX = '_u_boot_list_2_evspy_info_2_'
-RE_EVTYPE = re.compile('%s(.*)' % PREFIX)
+RE_EVTYPE = re.compile('%s(.*)_3_.*' % PREFIX)
 
 def show_sym(fname, data, endian, evtype, sym):
     """Show information about an evspy entry