dt-bindings: mfd: stm32: Remove unnecessary blank lines

Remove double blank line.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230417181342.v2.1.I483a676579cc7e3ac07e1db649091553743fecc8@changeid

Author: patrickdelaunay

include/dt-bindings/mfd/stm32f4-rcc.h

@@ -34,7 +34,6 @@
 #define STM32F4_AHB1_RESET(bit) (STM32F4_RCC_AHB1_##bit + (0x10 * 8))
 #define STM32F4_AHB1_CLOCK(bit) (STM32F4_RCC_AHB1_##bit)
 
-
 /* AHB2 */
 #define STM32F4_RCC_AHB2_DCMI	0
 #define STM32F4_RCC_AHB2_CRYP	4