board: Fix board file path for sdm845.c for Samsung and Qualcomm boards

Currently a few 'board/qualcomm/../Makefile' point to incorrect
path of sdm845 board file.

Fix the same.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
2 files changed