include: Bump-up version to 0.5

This patch updates OpenSBI version to 0.5 as part of
release preparation.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
diff --git a/include/sbi/sbi_version.h b/include/sbi/sbi_version.h
index 910b0b7..9268f6d 100644
--- a/include/sbi/sbi_version.h
+++ b/include/sbi/sbi_version.h
@@ -11,7 +11,7 @@
 #define __SBI_VERSION_H__
 
 #define OPENSBI_VERSION_MAJOR 0
-#define OPENSBI_VERSION_MINOR 4
+#define OPENSBI_VERSION_MINOR 5
 
 /**
  *  OpenSBI 32-bit version with: