Use real algorithm in cc2538 flash driver

Change-Id: I02ef42d753af94a381f32a1724c9206bf05e1ba0

src/flash/nor/cc2538.h

@@ -55,10 +55,7 @@ struct cc2538_algo_params {
 
 /* Flash helper algorithm */
 const uint8_t cc2538_algo[] = {
-        0x80, 0xb4, 0x83, 0xb0, 0x00, 0xaf, 0x03, 0x4b,
-        0x7b, 0x60, 0x7b, 0x68, 0x4f, 0xf0, 0xff, 0x32,
-        0x1a, 0x60, 0xfe, 0xe7, 0xf8, 0x1b, 0x00, 0x20,
-//#include "../../../contrib/loaders/flash/cc2538/cc2538_algo.inc"
+#include "../../../contrib/loaders/flash/cc2538/cc2538_algo.inc"
 };