x86/platform/intel-mid: Make intel_scu_device_register() static

There is no need anymore to have intel_scu_device_register() exported. Annotate
it with static keyword.

While here, rename to intel_scu_ipc_device_register() to use same pattern for
all SFI enumerated device register helpers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: http://lkml.kernel.org/r/20170107123457.53033-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/include/asm/intel-mid.h

@@ -27,7 +27,6 @@ extern void intel_mid_pwr_power_off(void);
 extern int intel_mid_pwr_get_lss_id(struct pci_dev *pdev);
 
 extern int get_gpio_by_name(const char *name);
-extern void intel_scu_device_register(struct platform_device *pdev);
 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
 extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
 extern int sfi_mrtc_num;

arch/x86/platform/intel-mid/sfi.c

@@ -226,7 +226,7 @@ int get_gpio_by_name(const char *name)
 	return -EINVAL;
 }
 
-void __init intel_scu_device_register(struct platform_device *pdev)
+static void __init intel_scu_ipc_device_register(struct platform_device *pdev)
 {
 	if (ipc_next_dev == MAX_IPCDEVS)
 		pr_err("too many SCU IPC devices");
@@ -361,7 +361,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
 
 	pdev->dev.platform_data = pdata;
 	if (dev->delay)
-		intel_scu_device_register(pdev);
+		intel_scu_ipc_device_register(pdev);
 	else
 		platform_device_add(pdev);
 }