Option NVM_WRITEONCE not needed on LPC. (tested multi-write OK)

Author: danielinux

config/examples/lpc54606j512.config

@@ -13,7 +13,7 @@ NO_ASM?=0
 EXT_FLASH?=0
 SPI_FLASH?=0
 ALLOW_DOWNGRADE?=0
-NVM_FLASH_WRITEONCE?=1
+NVM_FLASH_WRITEONCE?=0
 WOLFBOOT_VERSION?=0
 V?=0
 SPMATH?=1

hal/lpc.c

@@ -29,8 +29,8 @@
 static int flash_init = 0;
 uint32_t SystemCoreClock;
 
-#ifndef NVM_FLASH_WRITEONCE
-#   error "wolfBoot LPC HAL: no WRITEONCE support detected. Please define NVM_FLASH_WRITEONCE"
+#ifdef NVM_FLASH_WRITEONCE
+#   error "wolfBoot LPC HAL: WRITEONCE support detected. Please do not define NVM_FLASH_WRITEONCE on this platform."
 #endif
 
 #define BOARD_BOOTCLOCKPLL180M_CORE_CLOCK 180000000U