x86: apl: Move priv/plat structs to headers

With the new of-platdata, these need to be available to dt_platdata.c
so must be in header files. Move them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/apollolake/hostbridge.c b/arch/x86/cpu/apollolake/hostbridge.c
index 9ec2309..9decab7 100644
--- a/arch/x86/cpu/apollolake/hostbridge.c
+++ b/arch/x86/cpu/apollolake/hostbridge.c
@@ -24,6 +24,7 @@
 #include <asm/io.h>
 #include <asm/pci.h>
 #include <asm/arch/acpi.h>
+#include <asm/arch/hostbridge.h>
 #include <asm/arch/systemagent.h>
 #include <dt-bindings/sound/nhlt.h>
 #include <dm/acpi.h>
@@ -41,25 +42,6 @@
 	TOLUD			= 0xbc,
 };
 
-/**
- * struct apl_hostbridge_plat - platform data for hostbridge
- *
- * @dtplat: Platform data for of-platdata
- * @early_pads: Early pad data to set up, each (pad, cfg0, cfg1)
- * @early_pads_count: Number of pads to process
- * @pciex_region_size: BAR length in bytes
- * @bdf: Bus/device/function of hostbridge
- */
-struct apl_hostbridge_plat {
-#if CONFIG_IS_ENABLED(OF_PLATDATA)
-	struct dtd_intel_apl_hostbridge dtplat;
-#endif
-	u32 *early_pads;
-	int early_pads_count;
-	uint pciex_region_size;
-	pci_dev_t bdf;
-};
-
 #if CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE)
 static const struct nhlt_format_config dmic_1ch_formats[] = {
 	/* 48 KHz 16-bits per sample. */