drm/msm/hdmi: fix HDMI_MUX_EN gpio request typo

HDMI_MUX_EN gpio is requested. If an error occurs, the same name
should be printed (HDMI_MUX_EN) instead of HDMI_MUX_SEL (typo).

Signed-off-by: Beeresh Gopal <[e-mail]>
Signed-off-by: Stephane Viau <[e-mail]>
Reviewed-by: Andreas Färber <[e-mail]>
Signed-off-by: Rob Clark <[e-mail]>

drivers/gpu/drm/msm/hdmi/hdmi_connector.c

···
 			ret = gpio_request(config->mux_en_gpio, "HDMI_MUX_EN");
 			if (ret) {
 				dev_err(dev->dev, "'%s'(%d) gpio_request failed: %d\n",
-					"HDMI_MUX_SEL", config->mux_en_gpio, ret);
+					"HDMI_MUX_EN", config->mux_en_gpio, ret);
 				goto error4;
 			}
 			gpio_set_value_cansleep(config->mux_en_gpio, 1);