tree ca230fb4f3c64ab1b9236ecd8da6026a6cb541de
parent c43d68510e309b8e8d152c158ec46450f14d72a6
author Masahiro Yamada <yamada.masahiro@socionext.com> 1517478144 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1517498334 +0900

plat/common: move arch-agnostic fallback functions to C file

When we add a new callback, we need to duplicate fallbacks among
plat/common/{aarch32,aarch64}/platform_helpers.S  This is tedious.

I created a new C file, then moved 3 functions:
  plat_error_handler
  bl2_plat_preload_setup
  plat_try_next_boot_source

They are called from C, so I do not see a good reason to implement
them in assembly.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>