bc: Fix ptest test output naming

The quoting in the script was mangled leading to "0" tests being
found by our log parsing code. Fix the quoting to allow the correct
test counts to appear.

(From OE-Core rev: 5ad2ee63396cb27823dcd022878764bc69e619e9)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/bc/bc/run-ptest

@@ -2,8 +2,8 @@
 
 for TEST in *.b; do
 	if bc -l $TEST </dev/null; then
-		echo “PASS: bc/$TEST”
+		echo "PASS: bc/$TEST"
 	else
-		echo “FAIL: bc/$TEST”
+		echo "FAIL: bc/$TEST"
 	fi
 done