MAINTAINERS: Adjust file entry in NXP PF1550 PMIC MFD DRIVER

Commit ebaec90 ("mfd: pf1550: Add core driver for the PF1550 PMIC")
adds the header file pf1550.h in include/linux/mfd/, and commit
a7d6255 ("MAINTAINERS: Add an entry for PF1550 MFD driver") adds a new
section NXP PF1550 PMIC MFD DRIVER intending to refer to that header file.
It however adds the entry for pfd1550.h; note the additional letter in the
filename.

Adjust the file entry to refer to the intended file.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Reviewed-by: Samuel Kayode <samkay014@gmail.com>
Link: https://patch.msgid.link/20251029104228.95498-1-lukas.bulwahn@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>

Author: bulwahn

MAINTAINERS

@@ -18616,7 +18616,7 @@ F:	drivers/input/misc/pf1550-onkey.c
 F:	drivers/mfd/pf1550.c
 F:	drivers/power/supply/pf1550-charger.c
 F:	drivers/regulator/pf1550-regulator.c
-F:	include/linux/mfd/pfd1550.h
+F:	include/linux/mfd/pf1550.h
 
 NXP PF8100/PF8121A/PF8200 PMIC REGULATOR DEVICE DRIVER
 M:	Jagan Teki <jagan@amarulasolutions.com>