I can't recommend too much as I am new to OC'ing and Ryzen builds, but I just purchased my new build and had the 2.2Ghz problem while attempting a modest overclock. I have a Ryzen 1600x with Asus Rog Strix B350-F mobo and a single G.Skill TridentZ 8GB 3200 CL16 stick (waiting on a replacement pair, 1st had a bad stick).
I couldn't OC the cpu at all with bios 1001, since whenever I adjusted the multiplier the cpu would lock itself at 2.2 Ghz as others have seen.
Flashing the brand new Nov 2017 Asus B350-F bios 3203, meant to prep the board for next year's cpus, has allowed me to adjust the OC multiplier. I am a little worried though, as VDDCR CPU Voltage (set to Auto) is showing 1.525 which seems way too high... shouldn't it be below 1.4? *I wonder if I should manually lower it to 1.4... UPDATE I will listen to my heart and try reducing the voltage below 1.4V, afraid of toasting my new system with this new bios!