build: clean up .PHONY lists

This removes nonexisting targets from phony lists and puts them
all in one place.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Makefile

@@ -289,4 +289,5 @@ $(FATE): ffmpeg$(EXESUF) $(FATE_UTILS:%=tests/%$(HOSTEXESUF))
 fate-list:
 	@printf '%s\n' $(sort $(FATE))
 
-.PHONY: documentation *test regtest-* alltools check config
+.PHONY: all alltools *clean check config documentation examples install*
+.PHONY: *test testprogs uninstall*

common.mak

@@ -54,8 +54,6 @@ HOSTCFLAGS += $(IFLAGS)
 %.h:
 	@:
 
-.PHONY: all depend dep *clean install* uninstall* examples testprogs
-
 # Disable suffix rules.  Most of the builtin rules are suffix rules,
 # so this saves some time on slow systems.
 .SUFFIXES: