configs: e850-96: Enable more EFI features

The basic EFI support is already enabled by EFI_LOADER. Follow
SystemReady IR recommendations [1,2] for U-Boot and enable support for
more EFI features. That includes:

  - CONFIG_CMD_BOOTEFI_SELFTEST: support for "bootefi selftest" command
  - CONFIG_CMD_NVEDIT_EFI: support for "env -e" to explore EFI vars
  - CONFIG_CMD_EFIDEBUG: support for "efidebug" command

Also enable RTC support:

  - CONFIG_EFI_SET_TIME
  - CONFIG_CMD_RTC
  - CONFIG_DM_RTC
  - CONFIG_RTC_EMULATION

[1] https://developer.arm.com/documentation/DUI1101/1-1/Configure-U-Boot-for-SystemReady
[2] https://developer.arm.com/documentation/DUI1101/1-1/Test-SystemReady-IR

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
1 file changed