hwmon: qpnp-adc: Use EXPORT_SYMBOL

Remove instances of EXPORT_SYMBOL_GPL from the qpnp-adc driver.
Use EXPORT_SYMBOL instead.

Change-Id: If598d64a7978af8a8c1671fec9b11b6ac81d5517
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
diff --git a/drivers/hwmon/qpnp-adc-voltage.c b/drivers/hwmon/qpnp-adc-voltage.c
index 0470a62..e268541 100644
--- a/drivers/hwmon/qpnp-adc-voltage.c
+++ b/drivers/hwmon/qpnp-adc-voltage.c
@@ -741,7 +741,7 @@
 	return qpnp_vadc_conv_seq_request(ADC_SEQ_NONE,
 				channel, result);
 }
-EXPORT_SYMBOL_GPL(qpnp_vadc_read);
+EXPORT_SYMBOL(qpnp_vadc_read);
 
 static void qpnp_vadc_lock(void)
 {