ACPI / Kconfig: Remove redundant depends on ACPI

Since config ACPI_REDUCED_HARDWARE_ONLY is already depended
on ACPI (inside if ACPI / endif), so depdens on ACPI is redundant,
remove it and fix the minor syntax problem also.
Signed-off-by: NHanjun Guo <hanjun.guo@linaro.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/Kconfig

@@ -360,7 +360,6 @@ config ACPI_BGRT
 config ACPI_REDUCED_HARDWARE_ONLY
 	bool "Hardware-reduced ACPI support only" if EXPERT
 	def_bool n
-	depends on ACPI
 	help
 	  This config item changes the way the ACPI code is built.  When this
 	  option is selected, the kernel will use a specialized version of