CI: use HOME directory for QNX license and PATH in Linux host builds

To ensure that both Linux and Windows host builds are equivalent
the Linux host builds need to use the common QNX SDP file that
support both host environments. This new QNX SDP does not include
QNX license files like previously, instead they are separately
installed by the Ansible scripts of the CI system to the $HOME/.qnx
directory. That directory is also supposed to be used for any possible
binaries found via PATH environment variable.

Task-number: QTBUG-101292
Pick-to: 6.3 6.2
Change-Id: I97ad71f00e8289e708c51565f86c6d0c84a9ae84
Reviewed-by: Samuli Piippo <samuli.piippo@qt.io>

coin/instructions/prepare_building_env.yaml

@@ -335,10 +335,10 @@ instructions:
       variableValue: "{{.Env.QNX_710}}/target/qnx7"
     - type: EnvironmentVariable
       variableName: QNX_CONFIGURATION_EXCLUSIVE
-      variableValue: "{{.Env.QNX_710}}/.qnx"
+      variableValue: "{{.Env.HOME}}/.qnx"
     - type: EnvironmentVariable
       variableName: QNX_CONFIGURATION
-      variableValue: "{{.Env.QNX_710}}/.qnx"
+      variableValue: "{{.Env.HOME}}/.qnx"
     - type: PrependToEnvironmentVariable
       variableName: PATH
       variableValue: "{{.Env.QNX_710}}/host/linux/x86_64/usr/bin:"
@@ -347,7 +347,7 @@ instructions:
       variableValue: "{{.Env.QNX_710}}/host/common/bin:"
     - type: PrependToEnvironmentVariable
       variableName: PATH
-      variableValue: "{{.Env.QNX_710}}/.qnx:"
+      variableValue: "{{.Env.HOME}}/.qnx:"
     - type: EnvironmentVariable
       variableName: QNX_HOST
       variableValue: "{{.Env.QNX_710}}/host/linux/x86_64"