svd: esp32c6 is missing the slc peripheral

[rmsyn]

esp32c6 is missing the registers for the slc peripheral (address range 0x6001_7000-0x6001-7fff), and has the slchost peripheral starting at the beginning of the slc address range.

It looked like the slchost may have been used for both peripherals, but the registers for the slc peripheral are not present.

Is the omission of the slc peripheral intentional? Reading the Technical Reference Manual Section 5.3.5, these are distinct peripherals.

Several sub-sections in section 34.5 refer to registers in the slc peripheral for SDIO configuration, but they are not present in the esp32c6 pac.