board/orangepi*: update links in readme files

Old links are no longer working, so use new links instead.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 9584c8073a3b0d7453683d32bfafa0eb2c856a64)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

board/orangepi/orangepi-lite2/readme.txt

@@ -6,7 +6,7 @@ buildroot environment for the Orangepi Lite2. With the current configuration
 it will bring-up the board, and allow access through the serial console.
 
 Orangepi Lite2 link:
-http://www.orangepi.org/Orange%20Pi%20Lite%202/
+http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Lite-2.html
 
 Wiki link:
 https://openedev.amarulasolutions.com/display/ODWIKI/Orangepi+Lite2

board/orangepi/orangepi-one-plus/readme.txt

@@ -6,7 +6,7 @@ buildroot environment for the Orangepi One Plus. With the current configuration
 it will bring-up the board, and allow access through the serial console.
 
 Orangepi One Plus link:
-http://www.orangepi.org/OrangePiOneplus/
+http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-One-Plus.html
 
 Wiki link:
 https://openedev.amarulasolutions.com/display/ODWIKI/Orangepi+One+Plus

board/orangepi/orangepi-zero-plus2/readme.txt

@@ -6,7 +6,7 @@ buildroot environment for the Orangepi Zero Plus2. With the current configuratio
 it will bring-up the board, and allow access through the serial console.
 
 Orangepi Zero Plus2 link:
-http://www.orangepi.org/OrangePiZeroPlus2/
+http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Zero-Plus-2.html
 
 Wiki link:
 https://openedev.amarulasolutions.com/display/ODWIKI/Orangepi+Zero+Plus2