cbmem: Makefile: Add install target

Change-Id: Ib20481e43e6ca5b56c630cdc0eb7b1b01311cbb6
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-on: https://review.coreboot.org/12404
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

util/cbmem/Makefile

@@ -13,11 +13,13 @@
 ## GNU General Public License for more details.
 ##
 
-PROGRAM = cbmem
-ROOT = ../../src
-CC     ?= $(CROSS_COMPILE)gcc
-CFLAGS ?= -O2
-CFLAGS += -Wall -Werror
+PROGRAM   = cbmem
+ROOT      = ../../src
+CC       ?= $(CROSS_COMPILE)gcc
+INSTALL  ?= /usr/bin/install
+PREFIX   ?= /usr/local
+CFLAGS   ?= -O2
+CFLAGS   += -Wall -Werror
 CPPFLAGS += -I $(ROOT)/commonlib/include
 
 OBJS = $(PROGRAM).o
@@ -29,6 +31,10 @@ $(PROGRAM): $(OBJS)
 clean:
 	rm -f $(PROGRAM) *.o *~ junit.xml
 
+install: $(PROGRAM)
+	$(INSTALL) -d $(DESTDIR)$(PREFIX)/sbin/
+	$(INSTALL) cbmem $(DESTDIR)$(PREFIX)/sbin/
+
 distclean: clean
 	rm -f .dependencies