Fix flash_cs_force (#2969)

src/rp2_common/hardware_flash/flash.c

diff --git a/src/rp2_common/hardware_flash/flash.c b/src/rp2_common/hardware_flash/flash.c
index 294e7be..7d3b7a8 100644
--- a/src/rp2_common/hardware_flash/flash.c
+++ b/src/rp2_common/hardware_flash/flash.c
@@ -263,7 +263,7 @@
 
 // Bitbanging the chip select using IO overrides, in case RAM-resident IRQs
 // are still running, and the FIFO bottoms out. (the bootrom does the same)
-static __force_inline void flash_cs_force(bool high, uint8_t cs) {
+static __force_inline void flash_cs_force(bool high, uint cs) {
 #if PICO_RP2040
     (void)cs;
     uint32_t field_val = high ?