ARM: at91: pm: fix .uhp_udp_mask specification for current SoCs

ARM: at91: pm: fix .uhp_udp_mask specification for current SoCs

All SoCs using this structure field .uhp_udp_mask in configuration
index 4 don't have the bit 7 specified: sam9x60 nor sam9x75.
Remove this bit from the mask definition to match register layout.

This mask is used in function at91_pm_verify_clocks().

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20250827145427.46819-2-nicolas.ferre@microchip.com
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>