K 10
svn:author
V 4
manu
K 8
svn:date
V 27
2019-02-26T13:14:49.177550Z
K 7
svn:log
V 384
arm64: rockchip: clk: rk_clk_composite: Properly use the mask bits

RockChip clocks register have a write mask in the upper 16 bits, if a 1
is present the corresponding bit in the lower 16 ones is set.
Use this instead of always setting the mask to 0xFFFF0000.
This avoids a read of the register.
While here add some debug printf useful for debuging clock problems

MFC after:	1 week

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