[RyuJIT/ARM32] Update RMB for helper function

Make RBM_CALLEE_TRASH be consistent with CORINFO_HELP_STOP_FOR_GC helper
which is JIT_RareDisableHelper defined in vm/arm/asmhelpers.S

Signed-off-by: Hyung-Kyu Choi <hk0110.choi@samsung.com>

src/jit/target.h

@@ -1438,9 +1438,9 @@ typedef unsigned short regPairNoSmall; // arm: need 12 bits
   #define RBM_FLOATRET             RBM_F0
   #define RBM_DOUBLERET           (RBM_F0|RBM_F1)
 
-  // The registers trashed by the CORINFO_HELP_STOP_FOR_GC helper
+  // The registers trashed by the CORINFO_HELP_STOP_FOR_GC helper (JIT_RareDisableHelper).
   // See vm\arm\amshelpers.asm for more details.
-  #define RBM_STOP_FOR_GC_TRASH     (RBM_CALLEE_TRASH & ~(RBM_DOUBLERET | RBM_INTRET))
+  #define RBM_STOP_FOR_GC_TRASH     (RBM_CALLEE_TRASH & ~(RBM_LNGRET|RBM_R7|RBM_R8|RBM_R11|RBM_DOUBLERET|RBM_F2|RBM_F3|RBM_F4|RBM_F5|RBM_F6|RBM_F7))
 
   // The registers trashed by the CORINFO_HELP_INIT_PINVOKE_FRAME helper.
   #define RBM_INIT_PINVOKE_FRAME_TRASH (RBM_CALLEE_TRASH | RBM_PINVOKE_TCB | RBM_PINVOKE_SCRATCH)