Fix about 100 build errors/warnings when ACPI is not enabled. E.g.:

drivers/platform/x86/cmpc_acpi.c:50: error: dereferencing pointer to incomplete type
drivers/platform/x86/cmpc_acpi.c:55: error: dereferencing pointer to incomplete type
drivers/platform/x86/cmpc_acpi.c:56: error: dereferencing pointer to incomplete type
drivers/platform/x86/cmpc_acpi.c:72: warning: 'struct acpi_device' declared inside parameter list
drivers/platform/x86/cmpc_acpi.c:77: error: dereferencing pointer to incomplete type
drivers/platform/x86/cmpc_acpi.c:79: error: dereferencing pointer to incomplete type
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/platform/x86/Kconfig

@@ -438,7 +438,7 @@ config ACPI_TOSHIBA
 
 config ACPI_CMPC
 	tristate "CMPC Laptop Extras"
-	depends on X86
+	depends on X86 && ACPI
 	select INPUT
 	select BACKLIGHT_CLASS_DEVICE
 	default n