regulator: cpr3: Add braces around suspiciously indented code

It looks like we're missing braces here. Add them so that newer
GCCs don't complain.

Change-Id: I2aa95365dfd6ccaed082a0680ace8ac14b9083f8
CRs-Fixed: 2014919
Cc: David Collins <collinsd@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>