Update pal.lib / Nucleo F429 ZIP linking issue

Janne Kiiskilä · Janne Kiiskilä · commit 1739a4cf4b90 · 2017-06-13T09:09:29.000+03:00
One more file needed the #ifdef to avoid linking issues.
diff --git a/pal.lib b/pal.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/pal/#d2710126c35e679b6e88e64a62f08a47ed822833
+https://github.com/ARMmbed/pal/#e631746873e2e31e99b160d7eb6a9a673913347e

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-https://github.com/ARMmbed/pal/#d2710126c35e679b6e88e64a62f08a47ed822833`
	`1`	`+https://github.com/ARMmbed/pal/#e631746873e2e31e99b160d7eb6a9a673913347e`