config: versal: Update mini u-boot timer clock to 100Mhz

Mini u-boot timer clock is not updated when u-boot is migrated from
emulator to silicon. Due to this slower clock of 2.72Mhz, delay() functions
are not working accurately. Update CONFIG_COUNTER_FREQUENCY to 100Mhz.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/xilinx_versal_virt_defconfig b/configs/xilinx_versal_virt_defconfig
index b4123a9..b6ca566 100644
--- a/configs/xilinx_versal_virt_defconfig
+++ b/configs/xilinx_versal_virt_defconfig
@@ -5,7 +5,7 @@
 CONFIG_SYS_MALLOC_F_LEN=0x100000
 CONFIG_DM_GPIO=y
 CONFIG_DEFINE_TCM_OCM_MMAP=y
-CONFIG_COUNTER_FREQUENCY=62500000
+CONFIG_COUNTER_FREQUENCY=100000000
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y