1890000Hz is changed into 1812000Hz

Change-Id: I4da8c0edfc3ad7d60c3bd68ca7aefdd86eb360b2
add gpu_freq.h

Change-Id: I09e2e13178918e27452d192be6cbfd041b1ef114
add fifo-iosched

Change-Id: If5e7d71e4c7db61e4a7235018ec97559b362a7e5
update BFQ-v7r2 for 3.0

Change-Id: Idd97f2f5225acef915269f05332f53c47f7f8aaf