x86: rename ->ESR_DISABLE to ->disable_esr

the ->ESR_DISABLE shouting variant was used to enable the esr_disable
macro wrappers. Those ugly macros are removed now so we can rename
->ESR_DISABLE to ->disable_esr

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/include/asm/genapic.h b/arch/x86/include/asm/genapic.h
index e998e3d..7aee4a4 100644
--- a/arch/x86/include/asm/genapic.h
+++ b/arch/x86/include/asm/genapic.h
@@ -28,7 +28,7 @@
 
 	const struct cpumask *(*target_cpus)(void);
 
-	int ESR_DISABLE;
+	int disable_esr;
 
 	int apic_destination_logical;
 	unsigned long (*check_apicid_used)(physid_mask_t bitmap, int apicid);