trusty: Add fpu/simd support

The original patch has been partly merged. This adds the missing
pieces.

Change-Id: I77fd434feab396ff05d9b8e0c1761e4dd588a701
Signed-off-by: Arve Hjønnevåg <arve@android.com>
diff --git a/services/spd/trusty/trusty.mk b/services/spd/trusty/trusty.mk
index 2e51bd5..a571fa2 100644
--- a/services/spd/trusty/trusty.mk
+++ b/services/spd/trusty/trusty.mk
@@ -14,3 +14,5 @@
 endif
 
 NEED_BL32		:=	yes
+
+CTX_INCLUDE_FPREGS	:=	1