sim: common: simplify hw-config.h deps

Now that all ports (other than ppc) build in the top-level, we don't
need to expand all the hw-config.h targets as a recursive dep.  Each
port depends on their respective header now, and the ppc port doesn't
use it at all.
diff --git a/sim/Makefile.in b/sim/Makefile.in
index c2669fd..24ad291 100644
--- a/sim/Makefile.in
+++ b/sim/Makefile.in
@@ -1761,8 +1761,8 @@
 	testsuite/common/bits64m63.c
 DISTCLEANFILES = $(am__append_93)
 MOSTLYCLEANFILES = core $(SIM_ENABLED_ARCHES:%=%/*.o) \
-	$(common_HW_CONFIG_H_TARGETS) $(patsubst \
-	%,%/stamp-hw,$(SIM_ENABLED_ARCHES)) \
+	$(SIM_ENABLED_ARCHES:%=%/hw-config.h) \
+	$(SIM_ENABLED_ARCHES:%=%/stamp-hw) \
 	$(common_GEN_MODULES_C_TARGETS) $(patsubst \
 	%,%/stamp-modules,$(SIM_ENABLED_ARCHES)) $(am__append_6) \
 	site-sim-config.exp testrun.log testrun.sum $(am__append_19) \
@@ -1786,13 +1786,12 @@
 COMPILE_FOR_BUILD = $(CC_FOR_BUILD) $(AM_CPPFLAGS_FOR_BUILD) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD)
 LINK_FOR_BUILD = $(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) -o $@
 SIM_ALL_RECURSIVE_DEPS = common/libcommon.a \
-	$(common_HW_CONFIG_H_TARGETS) $(common_GEN_MODULES_C_TARGETS) \
-	$(am__append_3) $(am__append_18) $(am__append_23) \
-	$(am__append_30) $(am__append_35) $(am__append_47) \
-	$(am__append_56) $(am__append_61) $(am__append_65) \
-	$(am__append_71) $(am__append_75) $(am__append_91) \
-	$(am__append_97) $(am__append_106) $(am__append_120) \
-	$(am__append_126)
+	$(common_GEN_MODULES_C_TARGETS) $(am__append_3) \
+	$(am__append_18) $(am__append_23) $(am__append_30) \
+	$(am__append_35) $(am__append_47) $(am__append_56) \
+	$(am__append_61) $(am__append_65) $(am__append_71) \
+	$(am__append_75) $(am__append_91) $(am__append_97) \
+	$(am__append_106) $(am__append_120) $(am__append_126)
 SIM_INSTALL_DATA_LOCAL_DEPS = 
 SIM_INSTALL_EXEC_LOCAL_DEPS = $(am__append_40)
 SIM_UNINSTALL_LOCAL_DEPS = $(am__append_41)
@@ -1833,7 +1832,6 @@
 	sim-signal.o sim-stop.o sim-syscall.o sim-trace.o sim-utils.o \
 	sim-watch.o $(am__append_2)
 SIM_HW_DEVICES = cfi core pal glue
-common_HW_CONFIG_H_TARGETS = $(patsubst %,%/hw-config.h,$(SIM_ENABLED_ARCHES))
 am_arch_d = $(subst -,_,$(@D))
 GEN_MODULES_C_SRCS = \
 	$(wildcard \
diff --git a/sim/common/local.mk b/sim/common/local.mk
index 2c68f66..0ce7901 100644
--- a/sim/common/local.mk
+++ b/sim/common/local.mk
@@ -131,9 +131,7 @@
 	touch $@
 .PRECIOUS: %/stamp-hw
 
-%C%_HW_CONFIG_H_TARGETS = $(patsubst %,%/hw-config.h,$(SIM_ENABLED_ARCHES))
-MOSTLYCLEANFILES += $(%C%_HW_CONFIG_H_TARGETS) $(patsubst %,%/stamp-hw,$(SIM_ENABLED_ARCHES))
-SIM_ALL_RECURSIVE_DEPS += $(%C%_HW_CONFIG_H_TARGETS)
+MOSTLYCLEANFILES += $(SIM_ENABLED_ARCHES:%=%/hw-config.h) $(SIM_ENABLED_ARCHES:%=%/stamp-hw)
 
 ## See sim_pre_argv_init and sim_module_install in sim-module.c for more details.
 ## TODO: Switch this to xxx_SOURCES once projects build objects in local.mk.