doc: Fix some typos in different files

adresses/addresses
alernate/alternate
asssuming/assuming
calcualted/calculated
enviroment/environment
evalutation/evaluation
falsh/flash
labled/labeled
paramaters/parameters

Signed-off-by: Thomas Weber <thomas@tomweber.eu>
Acked-by: Anatolij Gustschin <agust@denx.de>
diff --git a/doc/README.Sandpoint8240 b/doc/README.Sandpoint8240
index a41b69a..fa846dc 100644
--- a/doc/README.Sandpoint8240
+++ b/doc/README.Sandpoint8240
@@ -236,7 +236,7 @@
 => setenv serverip 192.168.0.10
 => setenv gatewayip=192.168.0.1
 => saveenv
-Saving Enviroment to Flash...
+Saving Environment to Flash...
 Un-Protected 1 sectors
 Erasing Flash...
  done
@@ -296,7 +296,7 @@
 => cp.b 0x100000 FFF00000 1f28c
 Copy to Flash... done
 => saveenv
-Saving Enviroment to Flash...
+Saving Environment to Flash...
 Un-Protected 1 sectors
 Erasing Flash...
  done
@@ -330,7 +330,7 @@
  done
 Erased 7 sectors
 Copy to Flash... done
-Saving Enviroment to Flash...
+Saving Environment to Flash...
 Un-Protected 1 sectors
 Erasing Flash...
  done