mainboard/{google,intel}: Change config option selection

Change config option selection from "config xyz default y" to "select
xyz" if the config option has no dependencies.

BUG=None
BRANCH=None
TEST=Verified that config option selection remains unchanged.

Change-Id: I259ae40623b7f4d5589e2caa0988419ba4fefda4
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/18400
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

src/mainboard/intel/camelbackmountain_fsp/Kconfig

@@ -10,6 +10,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select INTEGRATED_UART if FSP_PACKAGE_DEFAULT
 	select HAVE_FSP_BIN if FSP_PACKAGE_DEFAULT
 	select SERIRQ_CONTINUOUS_MODE
+	select CONSOLE_POST
 
 config MAINBOARD_DIR
 	string
@@ -35,10 +36,6 @@ config VIRTUAL_ROM_SIZE
 	hex
 	default 0x1000000
 
-config CONSOLE_POST
-	bool
-	default y
-
 config DRIVERS_UART_8250IO
 	def_bool n