dt-binding: can: m_can: fix indention of table in bosch,mram-cfg description

This patch fixes the indention of the table in the description of the
bosch,mram-cfg property.

Link: https://lore.kernel.org/all/20220217101111.2291151-1-mkl@pengutronix.deReviewed-by: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Documentation/devicetree/bindings/net/can/bosch,m_can.yaml

@@ -66,8 +66,8 @@ properties:
       M_CAN includes the following elements according to user manual:
       11-bit Filter	0-128 elements / 0-128 words
       29-bit Filter	0-64 elements / 0-128 words
-      Rx FIFO 0	0-64 elements / 0-1152 words
-      Rx FIFO 1	0-64 elements / 0-1152 words
+      Rx FIFO 0		0-64 elements / 0-1152 words
+      Rx FIFO 1		0-64 elements / 0-1152 words
       Rx Buffers	0-64 elements / 0-1152 words
       Tx Event FIFO	0-32 elements / 0-64 words
       Tx Buffers	0-32 elements / 0-576 words