Darwin, add a missed file change

From the last commit.

2019-06-25  Iain Sandoe  <iain@sandoe.co.uk>

	* config.host: Add libef_ppc.a to the extra files for powerpc-darwin.

From-SVN: r272660

libgcc/config.host

@@ -1091,11 +1091,11 @@ powerpc-*-darwin*)
 	  ;;
 	esac
 	tmake_file="$tmake_file rs6000/t-ibm-ldouble"
-	extra_parts="$extra_parts crt2.o"
+	extra_parts="$extra_parts crt2.o libef_ppc.a"
 	;;
 powerpc64-*-darwin*)
 	tmake_file="$tmake_file rs6000/t-darwin64 rs6000/t-ibm-ldouble"
-	extra_parts="$extra_parts crt2.o"
+	extra_parts="$extra_parts crt2.o libef_ppc.a"
 	;;
 powerpc*-*-freebsd*)
 	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-savresfgpr rs6000/t-crtstuff rs6000/t-freebsd t-softfp-sfdf t-softfp-excl t-softfp"