fix(tc): fix compilation error

When the SPD_spmd configuration is disabled, the compiler complaints:

plat/arm/board/tc/tc_bl2_dpe.c:234:22: error: unused variable 'array_size' [-Werror=unused-variable]
  234 |         const size_t array_size = ARRAY_SIZE(tc_dpe_metadata);
      |                      ^~~~~~~~~~
plat/arm/board/tc/tc_bl2_dpe.c:233:16: error: unused variable 'i' [-Werror=unused-variable]
  233 |         size_t i;
      |                ^
cc1: all warnings being treated as errors

Move variable declarations into the code chunk protected by the SPD_spmd
configuration.

Change-Id: I1a3889938e2d4ec5efec516e9ef54034f9d711b2
Signed-off-by: Leo Yan <leo.yan@arm.com>
1 file changed