Fix for building programs with mingw

mingw build files were missing the dependency on the bcrypt library

Signed-off-by: Simon Butcher <simon.butcher@arm.com>
diff --git a/programs/Makefile b/programs/Makefile
index 5f47e25..80637e9 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -45,7 +45,7 @@
 ifdef WINDOWS_BUILD
 DLEXT=dll
 EXEXT=.exe
-LOCAL_LDFLAGS += -lws2_32
+LOCAL_LDFLAGS += -lws2_32 -lbcrypt
 ifdef SHARED
 SHARED_SUFFIX=.$(DLEXT)
 endif