kbuild: fix inconsistent indentation in top Makefile

Commit 3b9ab248bc ("kbuild: use 4-space indentation when followed
by conditionals") introduced inconsistent indentation because it
deliberately touched only the conditional directives to minimize the
change set.

This commit reformats some blocks in the top Makefile so they are
consistently indented with 4 spaces.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>

Makefile

@@ -295,51 +295,51 @@ single-build	:=
 
 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
     ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
-		need-config :=
+        need-config :=
     endif
 endif
 
 ifneq ($(filter $(no-sync-config-targets), $(MAKECMDGOALS)),)
     ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),)
-		may-sync-config :=
+        may-sync-config :=
     endif
 endif
 
 need-compiler := $(may-sync-config)
 
 ifneq ($(KBUILD_EXTMOD),)
-	may-sync-config :=
+    may-sync-config :=
 endif
 
 ifeq ($(KBUILD_EXTMOD),)
-        ifneq ($(filter %config,$(MAKECMDGOALS)),)
-		config-build := 1
-                ifneq ($(words $(MAKECMDGOALS)),1)
-			mixed-build := 1
-                endif
+    ifneq ($(filter %config,$(MAKECMDGOALS)),)
+        config-build := 1
+        ifneq ($(words $(MAKECMDGOALS)),1)
+            mixed-build := 1
         endif
+    endif
 endif
 
 # We cannot build single targets and the others at the same time
 ifneq ($(filter $(single-targets), $(MAKECMDGOALS)),)
-	single-build := 1
+    single-build := 1
     ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),)
-		mixed-build := 1
+        mixed-build := 1
     endif
 endif
 
 # For "make -j clean all", "make -j mrproper defconfig all", etc.
 ifneq ($(filter $(clean-targets),$(MAKECMDGOALS)),)
-        ifneq ($(filter-out $(clean-targets),$(MAKECMDGOALS)),)
-		mixed-build := 1
-        endif
+    ifneq ($(filter-out $(clean-targets),$(MAKECMDGOALS)),)
+        mixed-build := 1
+    endif
 endif
 
 # install and modules_install need also be processed one by one
 ifneq ($(filter install,$(MAKECMDGOALS)),)
-        ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
-		mixed-build := 1
-        endif
+    ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
+        mixed-build := 1
+    endif
 endif
 
 ifdef mixed-build