Android.mk: Remove $(shell) usage

$(shell) causes delayed startup of build system.

CRs-Fixed: 2940526
Change-Id: I486ccf820ead5d01434cf0dea660f55db6757229
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>

offload/Android.mk

@@ -18,7 +18,7 @@ RMNET_CORE_PATH := vendor/qcom/opensource/$(DATARMNET_CORE_PATH)
 DLKM_DIR := $(TOP)/device/qcom/common/dlkm
 #absolute path to the build directory. Can't use $(TOP) here since
 #that resolves to ., and we pass this to Kbuild, where . is different
-RMNET_CORE_INC_DIR := $(shell pwd)/$(RMNET_CORE_PATH)
+RMNET_CORE_INC_DIR := $(abspath $(RMNET_CORE_PATH))
 
 #pass variables down to Kbuild environment
 KBUILD_OPTIONS := RMNET_CORE_INC_DIR=$(RMNET_CORE_INC_DIR)

perf_tether/Android.mk

@@ -19,7 +19,7 @@ RMNET_CORE_PATH := vendor/qcom/opensource/$(DATARMNET_CORE_PATH)
 DLKM_DIR := $(TOP)/device/qcom/common/dlkm
 #absolute path to the build directory. Can't use $(TOP) here since
 #that resolves to ., and we pass this to Kbuild, where . is different
-RMNET_CORE_INC_DIR := $(shell pwd)/$(RMNET_CORE_PATH)
+RMNET_CORE_INC_DIR := $(abspath $(RMNET_CORE_PATH))
 
 #pass variables down to Kbuild environment
 KBUILD_OPTIONS := RMNET_CORE_INC_DIR=$(RMNET_CORE_INC_DIR)

shs/Android.mk

@@ -20,7 +20,7 @@ RMNET_CORE_PATH := vendor/qcom/opensource/$(DATARMNET_CORE_PATH)
 DLKM_DIR := $(TOP)/device/qcom/common/dlkm
 #absolute path to the build directory. Can't use $(TOP) here since
 #that resolves to ., and we pass this to Kbuild, where . is different
-RMNET_CORE_INC_DIR := $(shell pwd)/$(RMNET_CORE_PATH)
+RMNET_CORE_INC_DIR := $(abspath $(RMNET_CORE_PATH))
 
 #pass variables down to Kbuild environment
 KBUILD_OPTIONS := RMNET_CORE_INC_DIR=$(RMNET_CORE_INC_DIR)