add 2805mhz cpu/1235 vmax

reasoning before anyone yells at us:
we did testing on very good speedo and found that they can hold 2805@1200-1235 so it's justifable to add it if people can do it.
INA current measurement of 2703 proves that it draws only 3A so 2805 wont be much different (even if it overdraws it draws from vddq which is fine)

1235mV is also not known to have caused degratation (even long therm we havent got reports from just 1235). 1275 was what was reported to cause cpu damage.

README.md

@@ -155,7 +155,8 @@ Refer to COMPILATION.md
 * 40   → Erista only
 
 ### CPU clocks (mhz)
-* 2703 → mariko absolute max, dangerous
+* 2805 → mariko absolute max, dangerous
+* 2703
 * 2601 → unsafe
 * 2499
 * 2397 → mariko safe max with UV (low speedo)