Add some more consts to get data moved from .data to .rodata

We already had some `const`s but it was still not enough.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

jerry-core/parser/js/byte-code.c

@@ -54,7 +54,7 @@ const uint8_t cbc_ext_flags[] =
 /**
  * Names of the opcodes.
  */
-const char *cbc_names[] =
+const char * const cbc_names[] =
 {
   CBC_OPCODE_LIST
 };
@@ -62,7 +62,7 @@ const char *cbc_names[] =
 /**
  * Names of the extended opcodes.
  */
-const char *cbc_ext_names[] =
+const char * const cbc_ext_names[] =
 {
   CBC_EXT_OPCODE_LIST
 };