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Fix i2c_writeread for RTL8730E and SYU645B register read #6567

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Fix i2c_writeread for RTL8730E and SYU645B register read #6567

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Test code output to write and read back the registers,

95 : 40, 00, 32, 10, 
success, ret = 4
verify
95 : 40, 00, 32, 10, 

96 : 10, 00, 5C, AA, 
success, ret = 4
verify
96 : 10, 00, 5C, AA, 

B0 : 00, 00, 07, FF, 
success, ret = 4
verify
B0 : 00, 00, 07, FF, 

19 : 15, 
success, ret = 1
verify
19 : 15, 

10 : 77, 
success, ret = 1
verify
10 : 77,

@abhishek-samsung
os/arch/arm/src/amebasmart: fix i2c repeated start in writeread
b7e7228 
i2c_writeread was not working. Fix the issue by sending stop signal
appropriately.

Signed-off-by: Abhishek Akkabathula <[email protected]>
@abhishek-samsung
os/drivers/audio: modify SYU645B i2c register read to use writeread
55c14bf 
according to datasheet, we need to do a repeated start during read
without sending stop. Hence, we need to use writeread to read the
registers.

Signed-off-by: Abhishek Akkabathula <[email protected]>
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