Add dependency from install to mce-inject

So that make install without make first works.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
diff --git a/Makefile b/Makefile
index f635efa..9daa8e7 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@
 mce.tab.c mce.tab.h: mce.y
 	bison -d mce.y
 
-install:
+install: mce-inject
 	install -d $(destdir)$(prefix)/sbin
 	install -m 755 mce-inject $(destdir)$(prefix)/sbin/mce-inject
 	install -d $(destdir)$(manprefix)/man/man8