BuildSystem: Avoid 'ar cru' and use 'ar cr' instead.

In several internal library projects, the files are archived with the help of
'ar cr'. Only the projects editline and the Objective Open H.323 stack
implementation in C (ooh323c) use 'ar cru' instead. Recently, some platforms
changed the default parameters of AR which creates "/usr/bin/ar: `u' modifier
ignored since `D' is the default (see `U')". For consistency and to avoid this
message all projects use 'ar cr' now.

ASTERISK-26091 #close

Change-Id: I710a9b1c01c1b5a1931a646098c044c8161ead40

addons/ooh323c/src/Makefile.in

@@ -104,7 +104,7 @@ CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
 LIBRARIES = $(noinst_LIBRARIES)
 
-libooh323c_a_AR = $(AR) cru
+libooh323c_a_AR = $(AR) cr
 libooh323c_a_LIBADD =
 am_libooh323c_a_OBJECTS = ooLogChan.$(OBJEXT) ooUtils.$(OBJEXT) \
 	ooGkClient.$(OBJEXT) context.$(OBJEXT) ooDateTime.$(OBJEXT) \

main/editline/Makefile.in

@@ -187,7 +187,7 @@ distclean : clean
 #
 
 $(LIB_A) : $(BGCSRCS:.c=.o_a) $(CCSRCS:.c=.o_a)
-	$(AR) cru $@ $?
+	$(AR) cr $@ $?
 	$(RANLIB) $@
 
 $(LIB_S) : $(BGCSRCS:.c=.o_s) $(CCSRCS:.c=.o_s)