Add some missing volatiles to __asm statements in the CA9 GCC port.

FreeRTOS/Source/portable/GCC/ARM_CA9/port.c

@@ -410,7 +410,7 @@ void FreeRTOS_Tick_Handler( void )
 	updated. */
 	portCPU_IRQ_DISABLE();
 	portICCPMR_PRIORITY_MASK_REGISTER = ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT );
-	__asm(	"dsb		\n"
+	__asm volatile (	"dsb		\n"
 						"isb		\n" );
 	portCPU_IRQ_ENABLE();
 
@@ -435,7 +435,7 @@ uint32_t ulInitialFPSCR = 0;
 	ulPortTaskHasFPUContext = pdTRUE;
 
 	/* Initialise the floating point status register. */
-	__asm( "FMXR 	FPSCR, %0" :: "r" (ulInitialFPSCR) );
+	__asm volatile ( "FMXR 	FPSCR, %0" :: "r" (ulInitialFPSCR) );
 }
 /*-----------------------------------------------------------*/
 
@@ -464,7 +464,7 @@ uint32_t ulReturn;
 	{
 		ulReturn = pdFALSE;
 		portICCPMR_PRIORITY_MASK_REGISTER = ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT );
-		__asm(	"dsb		\n"
+		__asm volatile (	"dsb		\n"
 							"isb		\n" );
 	}
 	portCPU_IRQ_ENABLE();

FreeRTOS/Source/portable/GCC/ARM_CA9/portmacro.h

@@ -119,7 +119,7 @@ extern uint32_t ulPortYieldRequired;			\
 }
 
 #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
-#define portYIELD() __asm( "SWI 0" );
+#define portYIELD() __asm volatile ( "SWI 0" );
 
 
 /*-----------------------------------------------------------