Fix EPH / EPV conversion for MediaTek units
MTK: Bail out correctly
Merge pull request #978 from PX4/mtk_fix

Mtk fix
frsky_telemetry: fix gps data format

Eliminate inadvertent rounding and generate degrees/minutes
instead of degrees/minutes/seconds output per frsky docs
Merge pull request #982 from jhiesey/frsky_gps

frsky_telemetry: fix gps data format
Merge branch 'master' into dev-singlerotor
Add I-term to angular error and fix bug integrating (summing) I-terms