refactor(spi): moved spi hw sharing func to hw support

Common spi functionality for sharing the SPI bus between modules is moved from esp_driver_spi to
a more fitting location in esp_hw_support (shared HW resource control).

This also allows us to decouple the spi_flash driver from esp_driver_spi, removing
esp_driver_spi and esp_ringbuf from G1 builds.

components/esp_driver_spi/src/gpspi/spi_slave.c

@@ -31,6 +31,7 @@
 #include "esp_private/spi_slave_internal.h"
 #include "esp_private/spi_common_internal.h"
 #include "esp_private/esp_cache_private.h"
+#include "esp_private/spi_share_hw_ctrl.h"
 
 static const char *SPI_TAG = "spi_slave";