x86/Kconfig: Fix indentation of arch/x86/Kconfig.debug

The convention for indentation seems to be a single tab. Help text is
further indented by an additional two whitespaces. Fix the lines that
violate these rules.

Signed-off-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20220525133203.52463-3-juerg.haefliger@canonical.com

arch/x86/Kconfig.debug

@@ -73,20 +73,19 @@ config DEBUG_TLBFLUSH
 	bool "Set upper limit of TLB entries to flush one-by-one"
 	depends on DEBUG_KERNEL
 	help
+	  X86-only for now.
 
-	X86-only for now.
+	  This option allows the user to tune the amount of TLB entries the
+	  kernel flushes one-by-one instead of doing a full TLB flush. In
+	  certain situations, the former is cheaper. This is controlled by the
+	  tlb_flushall_shift knob under /sys/kernel/debug/x86. If you set it
+	  to -1, the code flushes the whole TLB unconditionally. Otherwise,
+	  for positive values of it, the kernel will use single TLB entry
+	  invalidating instructions according to the following formula:
 
-	This option allows the user to tune the amount of TLB entries the
-	kernel flushes one-by-one instead of doing a full TLB flush. In
-	certain situations, the former is cheaper. This is controlled by the
-	tlb_flushall_shift knob under /sys/kernel/debug/x86. If you set it
-	to -1, the code flushes the whole TLB unconditionally. Otherwise,
-	for positive values of it, the kernel will use single TLB entry
-	invalidating instructions according to the following formula:
+	  flush_entries <= active_tlb_entries / 2^tlb_flushall_shift
 
-	flush_entries <= active_tlb_entries / 2^tlb_flushall_shift
-
-	If in doubt, say "N".
+	  If in doubt, say "N".
 
 config IOMMU_DEBUG
 	bool "Enable IOMMU debugging"
@@ -119,10 +118,10 @@ config X86_DECODER_SELFTEST
 	depends on DEBUG_KERNEL && INSTRUCTION_DECODER
 	depends on !COMPILE_TEST
 	help
-	 Perform x86 instruction decoder selftests at build time.
-	 This option is useful for checking the sanity of x86 instruction
-	 decoder code.
-	 If unsure, say "N".
+	  Perform x86 instruction decoder selftests at build time.
+	  This option is useful for checking the sanity of x86 instruction
+	  decoder code.
+	  If unsure, say "N".
 
 choice
 	prompt "IO delay type"