Convert CONFIG_SYS_CONSOLE_IS_IN_ENV and CONFIG_CONSOLE_MUX to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_CONSOLE_IS_IN_ENV
   CONFIG_CONSOLE_MUX

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Re-order, re-migrate]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/sandbox_noblk_defconfig b/configs/sandbox_noblk_defconfig
index c051d41..6a0fc33 100644
--- a/configs/sandbox_noblk_defconfig
+++ b/configs/sandbox_noblk_defconfig
@@ -1,7 +1,6 @@
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_PCI=y
 CONFIG_DEFAULT_DEVICE_TREE="sandbox"
-CONFIG_I8042_KEYB=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_FIT_SIGNATURE=y
@@ -86,9 +85,9 @@
 CONFIG_SPL_I2C_MUX=y
 CONFIG_I2C_ARB_GPIO_CHALLENGE=y
 CONFIG_CROS_EC_KEYB=y
+CONFIG_I8042_KEYB=y
 CONFIG_LED=y
 CONFIG_LED_GPIO=y
-CONFIG_CMD_CROS_EC=y
 CONFIG_CROS_EC=y
 CONFIG_CROS_EC_I2C=y
 CONFIG_CROS_EC_LPC=y