prov/cxi: Turn off provider if headers not found

Disables the provider if headers not found

Signed-off-by: James Swaro <james.swaro@hpe.com>
(cherry picked from commit f94b21e4fba9038e1b8deddc46836311c67a0054)

Author: jswaro

prov/cxi/configure.m4

@@ -46,11 +46,11 @@ AC_DEFUN([FI_CXI_CONFIGURE],[
 		[
 			AC_CHECK_HEADER(cxi_prov_hw.h,
 				[],
-				[AC_MSG_ERROR("cxi_prov_hw.h not found")])
+				[cxi_happy=0])
 
 			AC_CHECK_HEADER(uapi/misc/cxi.h,
 				[],
-				[AC_MSG_ERROR("cxi.h not found")])
+				[cxi_happy=0])
 
 			FI_CHECK_PACKAGE([libcxi],
 				[libcxi/libcxi.h],