cr50: fix _cpri__DrbgGetPutState and  _cpri__EccCommitCompute stubs
cr50: fix _cpri__DrbgGetPutState and  _cpri__EccCommitCompute stubs

These functions are mostly no-ops it turns out, maybe something will
be needed to be done for RSA and ECC initialization, for now leaving
those functions commented out as a reminder.

BRANCH=none
BUG=chrome-os-partner:43025
TEST=tests passing before this change still pass.

Change-Id: Iee9aaf133a55a6197c9896ed48efb34a4b3340c6
Signed-off-by: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/314096
Reviewed-by: Nagendra Modadugu <5dc366ddbf8fb5981f46478e8436ef712a08b71b@google.com>

coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,akappy7/ChromeOS_EC_LED_Diagnostics