plat/nvidia: tegra: Rename SMC API

Renamed SMC API from "plat_smccc_feature_available" to
"plat_is_smccc_feature_available" as per the current implementation.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: Ib0fa400816fba61039c2029a9e127501a6a36811
diff --git a/plat/nvidia/tegra/common/tegra_platform.c b/plat/nvidia/tegra/common/tegra_platform.c
index 7c73e8f..d45d988 100644
--- a/plat/nvidia/tegra/common/tegra_platform.c
+++ b/plat/nvidia/tegra/common/tegra_platform.c
@@ -297,14 +297,14 @@
 }
 
 /*****************************************************************************
- * plat_smccc_feature_available() - This function checks whether SMCCC feature
+ * plat_is_smccc_feature_available() - This function checks whether SMCCC feature
  *                                  is availabile for the platform or not.
  * @fid: SMCCC function id
  *
  * Return SMC_ARCH_CALL_SUCCESS if SMCCC feature is available and
  * SMC_ARCH_CALL_NOT_SUPPORTED otherwise.
  *****************************************************************************/
-int32_t plat_smccc_feature_available(u_register_t fid)
+int32_t plat_is_smccc_feature_available(u_register_t fid)
 {
 	switch (fid) {
 	case SMCCC_ARCH_SOC_ID: