Coin: Fix env var for Oracle libraries and headers

While on windows the instantclient sdk also provides the relevant
(import) libs, on linux those libraries are only provided by
instantclient-basiclite package. Therfore setting the Oracle_ROOT env
var to the sdk dir will prevent the libraries to be found on linux.
The FindOracle.cmake module is already adjusted to look for the
libraries in ${Oracle_ROOT}, ${Oracle_ROOT}/lib and
${Oracle_ROOT}/sdk/lib so they should be found correctly even we don't
append 'sdk' for Oracle_ROOT on windows for consistency.

Task-number: QTBUG-128873
Change-Id: Icd211d5b503234de529c339581a4f42f0b5fc726
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>

coin/provisioning/common/linux/install-oracle.sh

@@ -46,6 +46,6 @@ sudo unzip -o -q /tmp/${packageFile} -d ${installFolder}
 echo "Remove downloaded ${packageFile} ..."
 rm -rf /tmp/${packageFile}
 
-SetEnvVar "Oracle_ROOT" "${installFolder}/${distdir}/sdk/"
+SetEnvVar "Oracle_ROOT" "${installFolder}/${distdir}/"
 
 echo "Oracle Instant Client = $version" >> ~/versions.txt

coin/provisioning/common/windows/install-oracle.ps1

@@ -40,7 +40,7 @@ Extract-7Zip $package $installFolder
 Write-Host "Remove downloaded $package ..."
 Remove $package
 
-Set-EnvironmentVariable "Oracle_ROOT" "$installFolder\${distdir}\sdk\"
+Set-EnvironmentVariable "Oracle_ROOT" "$installFolder\${distdir}\"
 
 # Store version information to ~/versions.txt, which is used to print version information to provision log.
 Write-Output "Oracle Instant Client = $version" >> ~/versions.txt