Update isa.c

fixed white spaces changing incorrect tab and space for alignment.

src/x86/isa.c

diff --git a/src/x86/isa.c b/src/x86/isa.c
index d56982f..30be453 100644
--- a/src/x86/isa.c
+++ b/src/x86/isa.c
@@ -46,7 +46,7 @@
 		(max_base_index >= 7) ? cpuidex(7, 0) : (struct cpuid_regs){0, 0, 0, 0};
 	const struct cpuid_regs structured_feature_info1 =
 		(max_base_index >= 7) ? cpuidex(7, 1) : (struct cpuid_regs){0, 0, 0, 0};
-    const struct cpuid_regs structured_feature_info2 =
+	const struct cpuid_regs structured_feature_info2 =
 	    (max_base_index >= 7) ? cpuidex(0x24, 0) : (struct cpuid_regs){0, 0, 0, 0};
 
 	const uint32_t processor_capacity_info_index = UINT32_C(0x80000008);