Enable correct SPI peripheral `dilemma/3x5_2/assembled` (#25479)

Initial

keyboards/bastardkb/dilemma/3x5_2/assembled/mcuconf.h

@@ -19,5 +19,5 @@
 
 #include_next <mcuconf.h>
 
-#undef RP_SPI_USE_SPI1
-#define RP_SPI_USE_SPI1 TRUE
+#undef RP_SPI_USE_SPI0
+#define RP_SPI_USE_SPI0 TRUE