build: Add board platforms to qcom_utils

Change-Id: I85458167bf2b9c04b029d09b87bf791ff4cfd04d

build: Use common name for QCOM 7K boards.

This is needed to build QCOM HAL without external modifications. The
device would now have to specify msm7x27 or msm7x30 instead of
specifying the full name.

Patch Set 2: Add msm7x27a into the list.

Change-Id: I25018e397b5aad27fab5244731a574ae86752e17

Add new version to qcom_utils.mk

Change-Id: I1ca1532fd4968450715ecd0cca7729e0e6d507ef

Build: update qcom_utils.mk

Add build macro to determine Android Release

Adding platform sdk version 18 for JB MR2.

Change-Id: I79aa831ddd335bd14bd777506c210acc5d9960f1