target-arm: Make vbar_write 64bit friendly on 32bit hosts

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1398926097-28097-2-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit fed3ffb)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

target-arm/helper.c

@@ -632,7 +632,7 @@ static void vbar_write(CPUARMState *env, const ARMCPRegInfo *ri,
      * contexts. (ARMv8 would permit us to do no masking at all, but ARMv7
      * requires the bottom five bits to be RAZ/WI because they're UNK/SBZP.)
      */
-    env->cp15.c12_vbar = value & ~0x1Ful;
+    env->cp15.c12_vbar = value & ~0x1FULL;
 }
 
 static uint64_t ccsidr_read(CPUARMState *env, const ARMCPRegInfo *ri)