A recent change mistakenly added a second copy of these two options,
which kbuild warns about:

 arch/arm/configs/multi_v5_defconfig:257:warning: override: reassigning
 to symbol ASPEED_LPC_CTRL
 arch/arm/configs/multi_v5_defconfig:258:warning: override: reassigning
 to symbol ASPEED_LPC_SNOOP

Fixes: 2d8bf340 ("ARM: configs: multi_v5: Add more ASPEED devices")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Olof Johansson <olof@lixom.net>