qcacmn: Fix for R2 REO register size calculation

Calculate register size by subtracting the higher
register address by the lower one.

Change-Id: Id2255ad48d0ceb2fde00774dbf56868efb3646ca
CRs-Fixed: 2052617

hal/wifi3.0/hal_srng.c

@@ -186,8 +186,8 @@ static struct hal_hw_srng_config hw_srng_table[] = {
 		.reg_size = {
 			HWIO_REO_R0_REO2SW2_RING_BASE_LSB_ADDR(0) -
 				HWIO_REO_R0_REO2SW1_RING_BASE_LSB_ADDR(0),
-			HWIO_REO_R2_REO2SW1_RING_HP_ADDR(0) -
-				HWIO_REO_R2_REO2SW2_RING_HP_ADDR(0),
+			HWIO_REO_R2_REO2SW2_RING_HP_ADDR(0) -
+				HWIO_REO_R2_REO2SW1_RING_HP_ADDR(0),
 		},
 	},
 	{ /* REO_EXCEPTION */