msm7x30: redefine TARGET_CPU_VARIANT

 * since scorpion enhancements are now fixed in bionic
   lets take advantage of them

Change-Id: Idbcaf9131a17c6e7bab5f6a404b339845bca041f
Merge branch 'kitkat' of https://github.com/Evervolv/android_device_htc_msm7x30-common.git into HEAD