mesmerizemtd: override apns-conf.xml to fix MMS

These mcc/mnc settings conflict with Sprint mcc/mnc pairs, so they
cannot be include in the common apns-conf-cdma.xml. Override it in
device tree to fix MMS.
mesmerizemtd: don't call cdma.mk, we include our own apns-conf.xml
mesmerizemtd: don't inherit device-specific vendor blobs
mesmerizemtd: underp the apn-related derps
Mez: remove cm make file and dependencies

Signed-off-by: travp624 <travp624@gmail.com>