realtek: mark gpio-regmap patch as upstreamed

The code in 800-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch
was accepted upstream as commit 897396b418d1 ("gpio: regmap: Bypass
cache for aliased inputs"). Update the filename to reflect the first
release containing this change.

Signed-off-by: Sander Vanheule <sander@svanheule.net>

diff --git a/target/linux/realtek/patches-6.12/800-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch b/target/linux/realtek/patches-6.12/021-v6.19-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch
similarity index 100%
rename from target/linux/realtek/patches-6.12/800-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch
rename to target/linux/realtek/patches-6.12/021-v6.19-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch

diff --git a/target/linux/realtek/patches-6.18/800-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch b/target/linux/realtek/patches-6.18/021-v6.19-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch
similarity index 100%
rename from target/linux/realtek/patches-6.18/800-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch
rename to target/linux/realtek/patches-6.18/021-v6.19-gpio-regmap-Bypass-cache-for-shadowed-outputs.patch