build: minor file renaming

src/3rdparty/Makefile.am

@@ -11,10 +11,10 @@ disable_cflags = $(filter $(AM_CPPFLAGS:-W%=-Wno-%), \
 liblol_bullet_a_SOURCES = $(bullet_sources)
 liblol_bullet_a_CPPFLAGS = -DB3_USE_CLEW $(AM_CPPFLAGS) -I$(srcdir)/bullet3/src $(disable_cflags)
 
-include bullet3.am
+include lol-bullet.am
 
 liblol_lua_a_SOURCES = $(lua_sources)
 liblol_lua_a_CPPFLAGS = $(AM_CPPFLAGS) -DLUA_ANSI
 
-include lua.am
+include lol-lua.am