[ESP32-C2] Correct REG_SPI_BASE(i) (IDFGH-11421)

[TD-er]

Given these defines (verified against the technical reference guide):

#define DR_REG_SPI1_BASE                        0x60002000
#define DR_REG_SPI0_BASE                        0x60003000
#define DR_REG_SPI2_BASE                        0x60024000

The existing formula can never match these registers.

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	Warnings
⚠️	Some issues found for the commit messages in this MR: the commit message [ESP32-C2] Correct REG_SPI_BASE(i) appears to be a temporary or automatically generated message Please consider updating these commit messages.

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