qsr1000: HNVRAM_UINT8 vars to be read as binary

Previously HNVRAM_UINT8 vars appeared blank in uboot
since it was trying to display the raw hex values:
(0x00, ^A). Now they will be displayed the same way
HNVRAM_HEXSTRING is displayed.

Change-Id: If70c4aa9c17e98197f8ebe9c4552c36a4c2bc9d1
diff --git a/common/cmd_hnvram.c b/common/cmd_hnvram.c
index 97c2ff2..447b0b3 100644
--- a/common/cmd_hnvram.c
+++ b/common/cmd_hnvram.c
@@ -70,6 +70,8 @@
 // These keys are stored in binary format for historical reasons
 const char *hnvram_binary_keys[] = {
         "LOADER_VERSION",
+        "ACTIVATED_KERNEL_NUM",
+        "HW_VER",
         "HDCP_KEY",
         "DTCP_KEY",
 };