Makefiles: move the dependencies block to be after DLEXT definition

Having it before them resulted in incomplete dependency names, always ending
with a period.
diff --git a/tests/Makefile b/tests/Makefile
index 0bed6b1..9698b80 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -25,12 +25,6 @@
 # on non-POSIX platforms.
 LOCAL_CFLAGS += -D_POSIX_C_SOURCE=200809L
 
-ifndef SHARED
-DEP=$(CRYPTO)libmbedcrypto.a ../library/libmbedx509.a ../library/libmbedtls.a
-else
-DEP=$(CRYPTO)libmbedcrypto.$(DLEXT) ../library/libmbedx509.$(DLEXT) ../library/libmbedtls.$(DLEXT)
-endif
-
 ifdef DEBUG
 LOCAL_CFLAGS += -g3
 endif
@@ -56,6 +50,12 @@
 PYTHON ?= python2
 endif
 
+ifndef SHARED
+DEP=$(CRYPTO)libmbedcrypto.a ../library/libmbedx509.a ../library/libmbedtls.a
+else
+DEP=$(CRYPTO)libmbedcrypto.$(DLEXT) ../library/libmbedx509.$(DLEXT) ../library/libmbedtls.$(DLEXT)
+endif
+
 # Zlib shared library extensions:
 ifdef ZLIB
 LOCAL_LDFLAGS += -lz