lib: sbi: Add smepmp in hart extensions

- Add Smepmp as extension in sbi_hart_extensions enum
- Return "smepmp" string for Smepmp extension from sbi_hart_extension_id2string

Signed-off-by: Himanshu Chauhan <hchauhan@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

include/sbi/sbi_hart.h

@@ -28,6 +28,8 @@ enum sbi_hart_priv_versions {
 enum sbi_hart_extensions {
 	/** HART has AIA M-mode CSRs */
 	SBI_HART_EXT_SMAIA = 0,
+	/** HART has Smepmp */
+	SBI_HART_EXT_SMEPMP,
 	/** HART has Smstateen CSR **/
 	SBI_HART_EXT_SMSTATEEN,
 	/** Hart has Sscofpmt extension */

lib/sbi/sbi_hart.c

@@ -456,6 +456,9 @@ static inline char *sbi_hart_extension_id2string(int ext)
 	case SBI_HART_EXT_ZIHPM:
 		estr = "zihpm";
 		break;
+	case SBI_HART_EXT_SMEPMP:
+		estr = "smepmp";
+		break;
 	default:
 		break;
 	}