[fusl] clang-format fusl

fusl/arch/mips/ksigaction.h

 struct k_sigaction {
-        unsigned flags;
-        void (*handler)(int);
-        unsigned long mask[4];
-        /* The following field is past the end of the structure the
-         * kernel will read or write, and exists only to avoid having
-         * mips-specific preprocessor conditionals in sigaction.c. */
-        void (*restorer)();
+  unsigned flags;
+  void (*handler)(int);
+  unsigned long mask[4];
+  /* The following field is past the end of the structure the
+   * kernel will read or write, and exists only to avoid having
+   * mips-specific preprocessor conditionals in sigaction.c. */
+  void (*restorer)();
 };
 
 void __restore(), __restore_rt();