Revert "defconfig: msm: avoid compilation of MDSS DP driver for 32-bit msmfalcon"

This reverts 'commit d3c76b29 ("defconfig: msm: avoid compilation
of MDSS DP driver for 32-bit msmfalcon")'. The compilation of MDSS DP
driver was disabled for 32-bit msmfalcon earlier to avoid compilation
issues. The related issues are now resolved. Hence, enable back the
compilation of DP driver.

Change-Id: I9f928f0aad6af346de43965755beb039e422047a
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>