mmc: omap_hsmmc: Simplify bool comparison and conversion

Fix the following coccicheck warning:
./drivers/mmc/host/omap_hsmmc.c:297:6-25: WARNING: Comparison of 0/1 to
bool variable

According to the context, vqmmc_enabled is more suitable for bool type.

Reported-by: Abaci Robot<[e-mail]>
Signed-off-by: Yang Li <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Ulf Hansson <[e-mail]>

drivers/mmc/host/omap_hsmmc.c

···
 	struct	regulator	*pbias;
 	bool			pbias_enabled;
 	void	__iomem		*base;
-	int			vqmmc_enabled;
+	bool			vqmmc_enabled;
 	resource_size_t		mapbase;
 	spinlock_t		irq_lock; /* Prevent races with irq handler */
 	unsigned int		dma_len;
···
 			dev_err(mmc_dev(mmc), "vmmc_aux reg enable failed\n");
 			goto err_vqmmc;
 		}
-		host->vqmmc_enabled = 1;
+		host->vqmmc_enabled = true;
 	}
 
 	return 0;
···
 			dev_err(mmc_dev(mmc), "vmmc_aux reg disable failed\n");
 			return ret;
 		}
-		host->vqmmc_enabled = 0;
+		host->vqmmc_enabled = false;
 	}
 
 	if (!IS_ERR(mmc->supply.vmmc)) {
···
 		return 0;
 
 	if (power_on) {
-		if (host->pbias_enabled == 0) {
+		if (!host->pbias_enabled) {
 			ret = regulator_enable(host->pbias);
 			if (ret) {
 				dev_err(host->dev, "pbias reg enable fail\n");
 				return ret;
 			}
-			host->pbias_enabled = 1;
+			host->pbias_enabled = true;
 		}
 	} else {
-		if (host->pbias_enabled == 1) {
+		if (host->pbias_enabled) {
 			ret = regulator_disable(host->pbias);
 			if (ret) {
 				dev_err(host->dev, "pbias reg disable fail\n");
 				return ret;
 			}
-			host->pbias_enabled = 0;
+			host->pbias_enabled = false;
 		}
 	}
 
···
 	host->base	= base + pdata->reg_offset;
 	host->power_mode = MMC_POWER_OFF;
 	host->next_data.cookie = 1;
-	host->pbias_enabled = 0;
-	host->vqmmc_enabled = 0;
+	host->pbias_enabled = false;
+	host->vqmmc_enabled = false;
 
 	platform_set_drvdata(pdev, host);