mtd: msm_qpic_nand: Enable clocks while accessing BAM registers

A NOC was seen while dumping BAM registers information. To avoid this,
always enable qpic clocks before accessing BAM registers.

Change-Id: I7a8799d742dc1fcc066512aba1537d7d48797a73
Signed-off-by: Pradeep P V K <quic_pragalla@quicinc.com>