wolfssl/wolfcrypt/sp_int.h: for sp-math-all with RSA or DH, raise default SP_INT_BITS from 3072 to 4096, to support 2k RSA.

Author: douzzer

wolfssl/wolfcrypt/sp_int.h

@@ -423,11 +423,9 @@ typedef struct sp_ecc_ctx {
                     #define SP_INT_BITS     8192
                 #elif !defined(NO_DH) && defined(HAVE_FFDHE_6144)
                     #define SP_INT_BITS     6144
-                #elif !defined(NO_DH) && defined(HAVE_FFDHE_4096)
-                    #define SP_INT_BITS     4096
                 #else
-                    /* Default to max 3072 for general RSA and DH. */
-                    #define SP_INT_BITS     3072
+                    /* Default to max 4096 for general RSA and DH. */
+                    #define SP_INT_BITS     4096
                 #endif
             #elif defined(WOLFCRYPT_HAVE_SAKKE)
                 #define SP_INT_BITS     1024