soc/amd/stoneyridge/include/soc/southbridge.c: Rename gpio structure

The GPIO definition structure has evolved to a point where it's no longer
specific to stoneyridge, though probably still specific to AMD. Therefore,
rename the GPIO declaration structure removing stoneyridge from it.

BUG=b:72875858
TEST=Build kahlee, grunt, gardenia.

Change-Id: Ib034d3f7840c36ee8f5c5384241d7326d3fe5543
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/25726
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/amd/stoneyridge/southbridge.c

@@ -172,8 +172,7 @@ const struct irq_idx_name *sb_get_apic_reg_association(size_t *size)
 	return irq_association;
 }
 
-void sb_program_gpios(const struct soc_amd_stoneyridge_gpio *gpio_ptr,
-		      size_t size)
+void sb_program_gpios(const struct soc_amd_gpio *gpio_ptr, size_t size)
 {
 	void *tmp_ptr;
 	uint8_t control, mux, index;