configs: mt8183: move android boot modes to #define

The MMCBOOT variable for CONFIG_MTK_ANDROID starts to get pretty long
and hard to read/modify.

Rework the MMCBOOT variable to:
- extract each android boot mode (recovery, system) to a
  dedicated macro ANDROID_BOOT_{RECOVERY,SYSTEM}

- use the dedicated macro in MMCBOOT.

Bug: https://baylibre.atlassian.net/browse/RITA-63
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
1 file changed