Updated SP build options and stack usage warning.

Author: dgarske

Makefile

@@ -73,7 +73,7 @@ ifeq ($(SIGN),RSA2048)
     ./src/rsa2048_pub_key.o \
 	./src/xmalloc_rsa.o
   CFLAGS+=-DWOLFBOOT_SIGN_RSA2048 -DXMALLOC_USER $(RSA_EXTRA_CFLAGS) \
-		  -Wstack-usage=4096 -DIMAGE_HEADER_SIZE=512
+		  -Wstack-usage=12288 -DIMAGE_HEADER_SIZE=512
 endif
 
 

include/user_settings.h

@@ -87,15 +87,13 @@
 #ifdef WOLFBOOT_SIGN_RSA2048
 #  define HAVE_RSA
 #  define RSA_LOW_MEM
-#  define WOLFSSL_STATIC_RSA
 #  define WOLFSSL_RSA_VERIFY_INLINE
-//#  define WOLFSSL_RSA_PUBLIC_ONLY
-//#  define WOLFSSL_RSA_VERIFY_ONLY
 #  define WOLFSSL_HAVE_SP_RSA
 #  define WOLFSSL_SP
 #  define WOLFSSL_SP_SMALL
 #  define WOLFSSL_SP_MATH
 #  define SP_WORD_SIZE 32
+#  define WOLFSSL_SP_NO_3072
 #endif
 
 /* Disables - For minimum wolfCrypt build */