Release 20211219
* buildroot 3b9c280fc4...cfcbef1566 (1):
> bugfix patch for devmem atomic read-write support
* fontamsoc-hw 77a96f5...98470a8 (1):
> new features and improvements
gpio device
nexysvideo: improve performance
use localparam for m_pi1r s_pi1r intctrlsrc intctrldst indexes
pu: implement single cycle multiplication
pu: implement clk_muldiv_i allowing muldiv to run using a faster clock
remove pu32-xula2lx25
nexys4ddr.bit 44d9302e9a5f409897286e893bea42ceec05fc4438abad8eb3256dfeac9b70ed
nexysvideo.bit 054788fee75992a9ce1d437f2f31c3bbf8216bc60e5a61a619c5a997ea3865a9
* fontamsoc-sw 1433dab...f5e093a (1):
> GPIO device driver
* linux 8f4e4332892d...06d990c6b59b (3):
> pu32gpio support
> improve pu32hdd Makefile
> minor __access_ok() change
