configs: sandbox: add onewire w1 and sandbox eeprom

To be able to test Dallas onewire protocol and one wire eeproms driver
and subsystem, add in sandbox defconfig the drivers' config.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 0b20968..fb71998 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -192,6 +192,10 @@
 CONFIG_CONSOLE_TRUETYPE=y
 CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
 CONFIG_VIDEO_SANDBOX_SDL=y
+CONFIG_W1=y
+CONFIG_W1_GPIO=y
+CONFIG_W1_EEPROM=y
+CONFIG_W1_EEPROM_SANDBOX=y
 CONFIG_WDT=y
 CONFIG_WDT_SANDBOX=y
 CONFIG_FS_CBFS=y