reset: remove unneeded 'fast_io' parameter in regmap_config

When using MMIO with regmap, fast_io is implied. No need to set it
again.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Drew Fustini <fustini@kernel.org> # for reset-th1520.c
Link: https://lore.kernel.org/r/20250813161517.4746-17-wsa+renesas@sang-engineering.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/reset/reset-intel-gw.c

@@ -40,7 +40,6 @@ static const struct regmap_config intel_rcu_regmap_config = {
 	.reg_bits =	32,
 	.reg_stride =	4,
 	.val_bits =	32,
-	.fast_io =	true,
 };
 
 /*

drivers/reset/reset-qcom-pdc.c

@@ -36,7 +36,6 @@ static const struct regmap_config pdc_regmap_config = {
 	.reg_stride	= 4,
 	.val_bits	= 32,
 	.max_register	= 0x20000,
-	.fast_io	= true,
 };
 
 static const struct qcom_pdc_reset_map sdm845_pdc_resets[] = {

drivers/reset/reset-th1520.c

@@ -116,7 +116,6 @@ static const struct regmap_config th1520_reset_regmap_config = {
 	.reg_bits = 32,
 	.val_bits = 32,
 	.reg_stride = 4,
-	.fast_io = true,
 };
 
 static int th1520_reset_probe(struct platform_device *pdev)