ixgbe: fix typos and docstring inconsistencies

ixgbe: fix typos and docstring inconsistencies

Corrected function and variable name typos in comments and docstrings:
 ixgbe_write_ee_hostif_X550 -> ixgbe_write_ee_hostif_data_X550
 ixgbe_get_lcd_x550em -> ixgbe_get_lcd_t_x550em
 "Determime" -> "Determine"
 "point to hardware structure" -> "pointer to hardware structure"
 "To turn on the LED" -> "To turn off the LED"

These changes improve readability, consistency.

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250929124427.79219-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>