arm: dts: msm: Update pmic revid and board-id for sdm450+pmi632

currently, revid of pmi632 and board id are not present in
sdm450-pmi632.dts updating values for the same.

Change-Id: I4ddde1016cad8136e475c0212895d8f6d4439012
Signed-off-by: Kavya Nunna <knunna@codeaurora.org>