tools/meminfo: move `meminfo` into tools/

Signed-off-by: Alejandro Mery <amery@geeks.cl>

Makefile

@@ -103,9 +103,6 @@ boot_head_sun5i.bin: boot_head_sun5i.elf
 
 bootinfo: bootinfo.c
 
-meminfo: meminfo.c
-	$(CROSS_COMPILE)gcc -g -O0 -Wall -static -o $@ $^
-
 .gitignore: Makefile
 	@for x in $(TOOLS) '*.o' '*.swp'; do \
 		echo "$$x"; \

tools/Makefile

 .PHONY: all clean
 
-CC = gcc
-AR = ar
+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar
 
 srctree	?= ..
 O	?= $(srctree)/out
 
 OBJDIR	:= $(O)/tools
-TOOLS	:= fexc fex2bin bin2fex
-SRCS	:= fexc.c
+TOOLS	:= fexc fex2bin bin2fex meminfo
+SRCS	:= fexc.c meminfo.c
 
 INCLUDES = -I$(srctree)/include
 CFLAGS	 = -O2
@@ -33,6 +33,9 @@ $(O)/fexc: $(OBJDIR)/fexc.o $(O)/libfex.a
 $(O)/fex2bin $(O)/bin2fex: $(O)/fexc
 	ln -svnf fexc $@
 
+$(O)/meminfo: $(OBJDIR)/meminfo.o
+	$(CC) -static $(CFLAGS) -o $@ $^
+
 # dependencies
 $(DEPS): Makefile
 	mkdir -p $(@D)