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: I6477001b736d2ca6a137591ae05e83b6aaab5ee4
diff --git a/Makefile.am b/Makefile.am
index 27885d3..d045e64 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,7 +2,7 @@
 
 CLEANFILES=$(BUILT_SOURCES)
 
-sbin_PROGRAMS = phosphor-inventory
+bin_PROGRAMS = phosphor-inventory
 noinst_LTLIBRARIES = libmanagercommon.la libmanager.la
 
 extra_yamldir=$(YAML_PATH)/extra_interfaces.d