DM36x: Set OSCDIV divider

The ability to set up the OSCDIV divider was missing.

Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>

tcl/target/davinci.cfg

@@ -222,6 +222,13 @@ proc pll_v03_setup {pll_addr mult config} {
 	} else {
 		mww [expr $pll_addr + 0x0120] 0
 	}
+	if { [dict exists $config oscdiv] } {
+		set div [dict get $config oscdiv]
+		set div [expr 0x8000 | ($div - 1)]
+		mww [expr $pll_addr + 0x0124] $div
+	} else {
+		mww [expr $pll_addr + 0x0124] 0
+	}
 	if { [dict exists $config div4] } {
 		set div [dict get $config div4]
 		set div [expr 0x8000 | ($div - 1)]