arch-arm: Fix style in decoder.hh.

Change-Id: I45cf1fefc6145393abec2de12e74816c0c8ac0e9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40096
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/arch/arm/decoder.hh

@@ -169,7 +169,8 @@ class Decoder : public InstDecoder
      * @param mach_inst A pre-decoded instruction
      * @retval A pointer to the corresponding StaticInst object.
      */
-    StaticInstPtr decode(ExtMachInst mach_inst, Addr addr)
+    StaticInstPtr
+    decode(ExtMachInst mach_inst, Addr addr)
     {
         return defaultCache.decode(this, mach_inst, addr);
     }
@@ -197,13 +198,15 @@ class Decoder : public InstDecoder
 
 
   public: // ARM-specific decoder state manipulation
-    void setContext(FPSCR fpscr)
+    void
+    setContext(FPSCR fpscr)
     {
         fpscrLen = fpscr.len;
         fpscrStride = fpscr.stride;
     }
 
-    void setSveLen(uint8_t len)
+    void
+    setSveLen(uint8_t len)
     {
         sveLen = len;
     }