Xilinx changes for v2021.01-rc3

Microblaze:
- Enable GC
- Get rid of xparameters.h and switch to DT for CFI
- Fix config file

tpm:
- Fix TPM code

zynqmp:
- Enable TPM by default
- Remove unused macros

fru:
- Several fixes especially use limit for recording

Xilinx changes for v2021.01-v2

common:
- Add support for 64bit loadables from SPL

xilinx:
- Update documentation and record ownership
- Enable eeprom board detection based legacy and fru formats
- Add support for FRU format

microblaze:
- Optimize low level ASM code
- Enable SPI/I2C
- Enable distro boot

zynq:
- Add support for Zturn V5

zynqmp:
- Improve silicon detection code
- Enable several kconfig options
- Align DT with the latest state
- Enabling security commands
- Enable and support FPGA loading from SPL
- Optimize xilinx_pm_request() calling

versal:
- Some DTs/Kconfig/defconfig alignments
- Add binding header for clock and power

zynq-sdhci:
- Add support for tap delay programming

zynq-spi/zynq-qspi:
- Use clock framework for getting clocks

xilinx-spi:
- Fix some code issues (unused variables)

serial:
- Check return value from clock functions in pl01x