x86: use u32 for safe_apic_wait_icr_idle()

Preperatory patch for merging apic headers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index dfeda91..3de3764 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -135,9 +135,9 @@
 		cpu_relax();
 }
 
-unsigned int safe_apic_wait_icr_idle(void)
+u32 safe_apic_wait_icr_idle(void)
 {
-	unsigned int send_status;
+	u32 send_status;
 	int timeout;
 
 	timeout = 0;