chromium-gn: Remove -g flag

Removed -g flags from arm builds. arm linker is unable to link the image
due to image size if -g flag is used:

arm-poky-linux-gnueabi-ld.lld: error: output file too large: 7344071860 bytes

Author: caneraltinbasak

meta-chromium/recipes-browser/chromium/chromium-gn.inc

@@ -222,6 +222,13 @@ DEBUG_FLAGS:remove:x86 = "-g"
 DEBUG_FLAGS:append:x86 = "-g1"
 GN_ARGS += "symbol_level=0"
 
+# For ARM builds, completely remove debug flags that cause binary size issues
+# This prevents the "output file too large" linker error on ARM32
+CFLAGS:remove:arm = "-g"
+CXXFLAGS:remove:arm = "-g"
+TARGET_CFLAGS:remove:arm = "-g"
+TARGET_CXXFLAGS:remove:arm = "-g"
+
 # As of Chromium 62.0.3202.94 and Yocto Rocko (GCC 7, binutils 2.29), passing
 # -g to the compiler results in many linker errors on aarch64, such as:
 # obj/third_party/WebKit/Source/modules/payments/libpayments.a(PaymentEventDataConversion.o)(.debug_loc+0x4e25): error: relocation overflow in R_AARCH64_ABS32