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
1 file changed