Fix for "benchmark" command to support float with nano.specs

Author: dgarske

options.mk

@@ -652,7 +652,7 @@ ifeq ($(WOLFCRYPT_TZ_PKCS11),1)
   CFLAGS+=-DCK_CALLABLE="__attribute__((cmse_nonsecure_entry))"
   CFLAGS+=-I$(WOLFBOOT_LIB_WOLFPKCS11)
   CFLAGS+=-DWP11_HASH_PIN_COST=3
-  LDFLAGS+=--specs=nano.specs
+  LDFLAGS+=--specs=nano.specs --specs=nosys.specs -u _printf_float
   WOLFCRYPT_OBJS+=src/pkcs11_store.o
   WOLFCRYPT_OBJS+=src/pkcs11_callable.o
   WOLFCRYPT_OBJS+=$(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/pwdbased.o