build: install into bin instead of sbin

Installs into bin instead of sbin per guidelines.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: Ie7747c1a6581742b2256ba2ddaf985df303ec39f
diff --git a/Makefile.am b/Makefile.am
index 1d35716..ac8f6c7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,5 @@
 AM_DEFAULT_SOURCE_EXT = .cpp
-sbin_PROGRAMS = phosphor-ledmanager
+bin_PROGRAMS = phosphor-ledmanager
 
 phosphor_ledmanager_SOURCES = \
                 led-main.cpp  \