BATTERY ICONS:Add the missing battery icons to MDPI

Change-Id: I9dc60331b3210209c7ac4f65dc3c02ddea40958e
Merge pull request #32 from singhdd93/cm-10.1

BATTERY ICONS:Add the missing battery icons to MDPI
Merge branch 'cm-10.1' of git://github.com/PAC-man/android_frameworks_base into PAC